/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i


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


This is Ultimate 0.2.0-aa1e80b
[2020-12-17 17:18:18,344 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-12-17 17:18:18,347 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-17 17:18:18,398 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-17 17:18:18,399 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-17 17:18:18,403 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-17 17:18:18,407 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-12-17 17:18:18,428 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
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[2020-12-17 17:18:18,435 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-12-17 17:18:18,437 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-17 17:18:18,440 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-17 17:18:18,447 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-17 17:18:18,455 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-17 17:18:18,457 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-17 17:18:18,459 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-17 17:18:18,460 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-12-17 17:18:18,463 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-17 17:18:18,472 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-12-17 17:18:18,472 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-12-17 17:18:18,473 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-17 17:18:18,475 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-12-17 17:18:18,477 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-12-17 17:18:18,484 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-12-17 17:18:18,485 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-12-17 17:18:18,486 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2020-12-17 17:18:18,543 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-12-17 17:18:18,544 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-17 17:18:18,548 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-17 17:18:18,548 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-12-17 17:18:18,548 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-12-17 17:18:18,548 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-17 17:18:18,549 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-12-17 17:18:18,549 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-12-17 17:18:18,549 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-12-17 17:18:18,550 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-12-17 17:18:18,551 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-12-17 17:18:18,551 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-17 17:18:18,551 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-12-17 17:18:18,551 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-12-17 17:18:18,552 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-12-17 17:18:18,552 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-12-17 17:18:18,552 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-12-17 17:18:18,552 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-17 17:18:18,552 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-12-17 17:18:18,553 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-12-17 17:18:18,553 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-12-17 17:18:18,553 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-17 17:18:18,554 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-17 17:18:18,554 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-12-17 17:18:18,554 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-17 17:18:18,554 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-12-17 17:18:18,554 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-17 17:18:18,555 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2020-12-17 17:18:18,555 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-17 17:18:18,555 INFO  L138        SettingsManager]:  * Minimization of abstraction=NONE
[2020-12-17 17:18:18,555 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-12-17 17:18:18,942 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-17 17:18:18,971 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-17 17:18:18,975 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-17 17:18:18,976 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-12-17 17:18:18,977 INFO  L275        PluginConnector]: CDTParser initialized
[2020-12-17 17:18:18,978 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i
[2020-12-17 17:18:19,059 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/626a03ecf/634b7b4c9d9d46a28233e1c68c89f22d/FLAG0a1fad677
[2020-12-17 17:18:19,759 INFO  L306              CDTParser]: Found 1 translation units.
[2020-12-17 17:18:19,760 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i
[2020-12-17 17:18:19,783 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/626a03ecf/634b7b4c9d9d46a28233e1c68c89f22d/FLAG0a1fad677
[2020-12-17 17:18:20,037 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/626a03ecf/634b7b4c9d9d46a28233e1c68c89f22d
[2020-12-17 17:18:20,042 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-17 17:18:20,044 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-12-17 17:18:20,049 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-17 17:18:20,049 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-17 17:18:20,053 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-17 17:18:20,054 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,064 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260dde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20, skipping insertion in model container
[2020-12-17 17:18:20,064 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,074 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-12-17 17:18:20,144 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-12-17 17:18:20,634 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:18:20,645 INFO  L203         MainTranslator]: Completed pre-run
[2020-12-17 17:18:20,708 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:18:20,806 INFO  L208         MainTranslator]: Completed translation
[2020-12-17 17:18:20,806 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20 WrapperNode
[2020-12-17 17:18:20,807 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-17 17:18:20,808 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-17 17:18:20,808 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-17 17:18:20,808 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-17 17:18:20,818 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,835 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,860 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-17 17:18:20,864 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-17 17:18:20,864 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-17 17:18:20,865 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-12-17 17:18:20,874 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,874 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,878 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,878 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,885 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,887 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,889 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
[2020-12-17 17:18:20,893 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-17 17:18:20,894 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-17 17:18:20,894 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-12-17 17:18:20,914 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-12-17 17:18:20,915 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-17 17:18:21,040 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-12-17 17:18:21,041 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-12-17 17:18:21,042 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-17 17:18:21,042 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-17 17:18:21,043 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-12-17 17:18:21,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-12-17 17:18:21,044 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-12-17 17:18:21,044 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-12-17 17:18:21,045 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2020-12-17 17:18:21,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2020-12-17 17:18:21,045 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-17 17:18:21,046 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-12-17 17:18:21,046 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-17 17:18:21,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-17 17:18:21,048 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-12-17 17:18:21,644 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-17 17:18:21,644 INFO  L298             CfgBuilder]: Removed 10 assume(true) statements.
[2020-12-17 17:18:21,646 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:18:21 BoogieIcfgContainer
[2020-12-17 17:18:21,646 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-17 17:18:21,648 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-17 17:18:21,649 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-12-17 17:18:21,652 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-12-17 17:18:21,652 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:18:20" (1/3) ...
[2020-12-17 17:18:21,653 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f345f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:18:21, skipping insertion in model container
[2020-12-17 17:18:21,654 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:18:20" (2/3) ...
[2020-12-17 17:18:21,654 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f345f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:18:21, skipping insertion in model container
[2020-12-17 17:18:21,654 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:18:21" (3/3) ...
[2020-12-17 17:18:21,656 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc.i
[2020-12-17 17:18:21,674 WARN  L168   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-12-17 17:18:21,674 INFO  L179   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-17 17:18:21,678 INFO  L191   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-12-17 17:18:21,679 INFO  L351   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-12-17 17:18:21,719 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,719 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,719 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,720 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,720 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,720 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,720 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,720 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,721 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,721 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,721 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,722 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,722 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,722 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,722 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,723 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,723 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,723 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,723 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,723 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,724 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,724 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,724 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,725 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,725 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,725 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,726 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,726 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,726 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,726 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,726 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,727 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,727 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,727 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,728 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,728 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,730 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,731 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,731 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,731 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,739 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,740 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,740 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,740 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,745 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,745 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,745 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,746 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:18:21,748 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-12-17 17:18:21,763 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-12-17 17:18:21,786 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-12-17 17:18:21,786 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-12-17 17:18:21,787 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-17 17:18:21,787 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-17 17:18:21,787 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-17 17:18:21,787 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-12-17 17:18:21,787 INFO  L383      AbstractCegarLoop]: Minimize is NONE
[2020-12-17 17:18:21,787 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-17 17:18:21,799 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow
[2020-12-17 17:18:22,642 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:22,683 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:22,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2020-12-17 17:18:22,731 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:22,732 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:22,732 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:22,739 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:22,739 INFO  L82        PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times
[2020-12-17 17:18:22,749 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:22,749 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373097634]
[2020-12-17 17:18:22,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:22,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:23,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:23,276 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373097634]
[2020-12-17 17:18:23,277 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:23,277 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:18:23,278 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902767629]
[2020-12-17 17:18:23,283 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:18:23,284 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:23,299 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:18:23,300 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:18:23,326 INFO  L87              Difference]: Start difference. First operand  has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:23,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:23,735 INFO  L93              Difference]: Finished difference Result 12200 states and 42464 transitions.
[2020-12-17 17:18:23,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-12-17 17:18:23,737 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42
[2020-12-17 17:18:23,738 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:23,801 INFO  L225             Difference]: With dead ends: 12200
[2020-12-17 17:18:23,802 INFO  L226             Difference]: Without dead ends: 4605
[2020-12-17 17:18:23,803 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:23,804 INFO  L78                 Accepts]: Start accepts. Automaton has 4605 states. Word has length 42
[2020-12-17 17:18:23,805 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:23,806 INFO  L481      AbstractCegarLoop]: Abstraction has 4605 states.
[2020-12-17 17:18:23,806 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:23,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 4605 states.
[2020-12-17 17:18:23,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-12-17 17:18:23,828 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:23,829 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:23,829 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-17 17:18:23,829 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:23,830 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:23,830 INFO  L82        PathProgramCache]: Analyzing trace with hash -1502808140, now seen corresponding path program 1 times
[2020-12-17 17:18:23,831 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:23,831 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27133977]
[2020-12-17 17:18:23,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:23,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:24,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:24,033 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27133977]
[2020-12-17 17:18:24,033 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:24,033 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:18:24,033 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251252419]
[2020-12-17 17:18:24,035 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:18:24,035 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:24,036 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:18:24,037 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:18:24,037 INFO  L87              Difference]: Start difference. First operand 4605 states. Second operand  has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:24,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:24,387 INFO  L93              Difference]: Finished difference Result 5193 states and 17516 transitions.
[2020-12-17 17:18:24,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-12-17 17:18:24,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44
[2020-12-17 17:18:24,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:24,486 INFO  L225             Difference]: With dead ends: 5193
[2020-12-17 17:18:24,486 INFO  L226             Difference]: Without dead ends: 4213
[2020-12-17 17:18:24,488 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:24,488 INFO  L78                 Accepts]: Start accepts. Automaton has 4213 states. Word has length 44
[2020-12-17 17:18:24,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:24,489 INFO  L481      AbstractCegarLoop]: Abstraction has 4213 states.
[2020-12-17 17:18:24,490 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:24,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 4213 states.
[2020-12-17 17:18:24,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-12-17 17:18:24,507 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:24,507 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:24,507 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-17 17:18:24,508 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:24,511 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:24,511 INFO  L82        PathProgramCache]: Analyzing trace with hash 2080522916, now seen corresponding path program 1 times
[2020-12-17 17:18:24,511 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:24,512 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765450217]
[2020-12-17 17:18:24,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:24,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:24,748 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:24,748 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765450217]
[2020-12-17 17:18:24,749 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:24,749 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:18:24,750 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444791691]
[2020-12-17 17:18:24,750 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:18:24,751 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:24,751 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:18:24,752 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:18:24,756 INFO  L87              Difference]: Start difference. First operand 4213 states. Second operand  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:24,939 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:24,940 INFO  L93              Difference]: Finished difference Result 4549 states and 15228 transitions.
[2020-12-17 17:18:24,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-12-17 17:18:24,940 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45
[2020-12-17 17:18:24,941 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:24,974 INFO  L225             Difference]: With dead ends: 4549
[2020-12-17 17:18:24,974 INFO  L226             Difference]: Without dead ends: 3765
[2020-12-17 17:18:24,976 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:24,976 INFO  L78                 Accepts]: Start accepts. Automaton has 3765 states. Word has length 45
[2020-12-17 17:18:24,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:24,977 INFO  L481      AbstractCegarLoop]: Abstraction has 3765 states.
[2020-12-17 17:18:24,977 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:24,977 INFO  L276                IsEmpty]: Start isEmpty. Operand 3765 states.
[2020-12-17 17:18:24,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-12-17 17:18:24,989 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:24,989 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:24,989 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-17 17:18:24,990 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:24,991 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:24,991 INFO  L82        PathProgramCache]: Analyzing trace with hash 1485652643, now seen corresponding path program 1 times
[2020-12-17 17:18:24,991 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:24,991 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535453705]
[2020-12-17 17:18:24,991 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:25,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:25,176 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:25,176 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535453705]
[2020-12-17 17:18:25,176 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:25,177 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:18:25,177 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011825067]
[2020-12-17 17:18:25,177 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:18:25,177 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:25,178 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:18:25,178 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:18:25,178 INFO  L87              Difference]: Start difference. First operand 3765 states. Second operand  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:25,336 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:25,337 INFO  L93              Difference]: Finished difference Result 5550 states and 18620 transitions.
[2020-12-17 17:18:25,337 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-12-17 17:18:25,338 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47
[2020-12-17 17:18:25,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:25,381 INFO  L225             Difference]: With dead ends: 5550
[2020-12-17 17:18:25,381 INFO  L226             Difference]: Without dead ends: 3275
[2020-12-17 17:18:25,382 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:25,382 INFO  L78                 Accepts]: Start accepts. Automaton has 3275 states. Word has length 47
[2020-12-17 17:18:25,382 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:25,382 INFO  L481      AbstractCegarLoop]: Abstraction has 3275 states.
[2020-12-17 17:18:25,383 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:25,383 INFO  L276                IsEmpty]: Start isEmpty. Operand 3275 states.
[2020-12-17 17:18:25,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-12-17 17:18:25,393 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:25,393 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:25,393 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-12-17 17:18:25,393 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:25,395 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:25,395 INFO  L82        PathProgramCache]: Analyzing trace with hash 1266801623, now seen corresponding path program 2 times
[2020-12-17 17:18:25,396 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:25,396 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322055259]
[2020-12-17 17:18:25,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:25,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:25,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:25,543 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322055259]
[2020-12-17 17:18:25,544 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:25,544 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:18:25,545 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113896941]
[2020-12-17 17:18:25,546 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:18:25,546 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:25,546 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:18:25,547 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:18:25,547 INFO  L87              Difference]: Start difference. First operand 3275 states. Second operand  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:25,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:25,724 INFO  L93              Difference]: Finished difference Result 4063 states and 13251 transitions.
[2020-12-17 17:18:25,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-12-17 17:18:25,725 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47
[2020-12-17 17:18:25,725 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:25,738 INFO  L225             Difference]: With dead ends: 4063
[2020-12-17 17:18:25,738 INFO  L226             Difference]: Without dead ends: 2971
[2020-12-17 17:18:25,738 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:25,739 INFO  L78                 Accepts]: Start accepts. Automaton has 2971 states. Word has length 47
[2020-12-17 17:18:25,742 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:25,743 INFO  L481      AbstractCegarLoop]: Abstraction has 2971 states.
[2020-12-17 17:18:25,747 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:25,747 INFO  L276                IsEmpty]: Start isEmpty. Operand 2971 states.
[2020-12-17 17:18:25,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-12-17 17:18:25,757 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:25,764 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:25,765 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-12-17 17:18:25,765 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:25,765 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:25,766 INFO  L82        PathProgramCache]: Analyzing trace with hash -2035932160, now seen corresponding path program 1 times
[2020-12-17 17:18:25,766 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:25,766 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724372803]
[2020-12-17 17:18:25,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:25,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:26,086 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5
[2020-12-17 17:18:26,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:26,099 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724372803]
[2020-12-17 17:18:26,099 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:26,100 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:18:26,100 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867309411]
[2020-12-17 17:18:26,100 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:18:26,101 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:26,101 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:18:26,101 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:18:26,102 INFO  L87              Difference]: Start difference. First operand 2971 states. Second operand  has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:26,385 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:26,385 INFO  L93              Difference]: Finished difference Result 2995 states and 9441 transitions.
[2020-12-17 17:18:26,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-12-17 17:18:26,386 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48
[2020-12-17 17:18:26,386 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:26,404 INFO  L225             Difference]: With dead ends: 2995
[2020-12-17 17:18:26,404 INFO  L226             Difference]: Without dead ends: 2095
[2020-12-17 17:18:26,405 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-12-17 17:18:26,405 INFO  L78                 Accepts]: Start accepts. Automaton has 2095 states. Word has length 48
[2020-12-17 17:18:26,406 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:26,406 INFO  L481      AbstractCegarLoop]: Abstraction has 2095 states.
[2020-12-17 17:18:26,406 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:26,407 INFO  L276                IsEmpty]: Start isEmpty. Operand 2095 states.
[2020-12-17 17:18:26,413 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2020-12-17 17:18:26,413 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:26,414 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:26,414 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-12-17 17:18:26,414 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:26,415 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:26,415 INFO  L82        PathProgramCache]: Analyzing trace with hash 1922996831, now seen corresponding path program 1 times
[2020-12-17 17:18:26,415 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:26,416 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760276501]
[2020-12-17 17:18:26,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:26,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:26,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:26,625 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760276501]
[2020-12-17 17:18:26,625 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:26,625 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-12-17 17:18:26,625 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41032739]
[2020-12-17 17:18:26,626 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-12-17 17:18:26,626 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:26,627 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-12-17 17:18:26,628 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-12-17 17:18:26,628 INFO  L87              Difference]: Start difference. First operand 2095 states. Second operand  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:26,872 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:26,873 INFO  L93              Difference]: Finished difference Result 1609 states and 4791 transitions.
[2020-12-17 17:18:26,873 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-12-17 17:18:26,873 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50
[2020-12-17 17:18:26,875 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:26,881 INFO  L225             Difference]: With dead ends: 1609
[2020-12-17 17:18:26,881 INFO  L226             Difference]: Without dead ends: 1141
[2020-12-17 17:18:26,881 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-12-17 17:18:26,882 INFO  L78                 Accepts]: Start accepts. Automaton has 1141 states. Word has length 50
[2020-12-17 17:18:26,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:26,882 INFO  L481      AbstractCegarLoop]: Abstraction has 1141 states.
[2020-12-17 17:18:26,883 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:26,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 1141 states.
[2020-12-17 17:18:26,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-12-17 17:18:26,887 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:26,887 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:26,888 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-12-17 17:18:26,888 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:26,888 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:26,889 INFO  L82        PathProgramCache]: Analyzing trace with hash 2028376861, now seen corresponding path program 1 times
[2020-12-17 17:18:26,889 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:26,890 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000833785]
[2020-12-17 17:18:26,890 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:26,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:27,121 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:27,122 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000833785]
[2020-12-17 17:18:27,122 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:27,122 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:18:27,122 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123961684]
[2020-12-17 17:18:27,123 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:18:27,123 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:27,124 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:18:27,124 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:18:27,124 INFO  L87              Difference]: Start difference. First operand 1141 states. Second operand  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:27,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:27,260 INFO  L93              Difference]: Finished difference Result 1584 states and 4593 transitions.
[2020-12-17 17:18:27,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-12-17 17:18:27,261 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2020-12-17 17:18:27,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:27,264 INFO  L225             Difference]: With dead ends: 1584
[2020-12-17 17:18:27,264 INFO  L226             Difference]: Without dead ends: 791
[2020-12-17 17:18:27,265 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:27,265 INFO  L78                 Accepts]: Start accepts. Automaton has 791 states. Word has length 54
[2020-12-17 17:18:27,265 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:27,265 INFO  L481      AbstractCegarLoop]: Abstraction has 791 states.
[2020-12-17 17:18:27,266 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:27,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 791 states.
[2020-12-17 17:18:27,268 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-12-17 17:18:27,268 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:27,268 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:27,268 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-12-17 17:18:27,269 INFO  L429      AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:27,269 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:27,269 INFO  L82        PathProgramCache]: Analyzing trace with hash 1950903709, now seen corresponding path program 2 times
[2020-12-17 17:18:27,269 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:27,270 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772214952]
[2020-12-17 17:18:27,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:27,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:27,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:27,389 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772214952]
[2020-12-17 17:18:27,389 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:27,390 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:18:27,391 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46084269]
[2020-12-17 17:18:27,391 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:18:27,391 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:27,392 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:18:27,392 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:18:27,392 INFO  L87              Difference]: Start difference. First operand 791 states. Second operand  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:27,510 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:27,511 INFO  L93              Difference]: Finished difference Result 1162 states and 3320 transitions.
[2020-12-17 17:18:27,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-12-17 17:18:27,511 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2020-12-17 17:18:27,512 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:27,514 INFO  L225             Difference]: With dead ends: 1162
[2020-12-17 17:18:27,514 INFO  L226             Difference]: Without dead ends: 615
[2020-12-17 17:18:27,515 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:27,515 INFO  L78                 Accepts]: Start accepts. Automaton has 615 states. Word has length 54
[2020-12-17 17:18:27,515 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:27,515 INFO  L481      AbstractCegarLoop]: Abstraction has 615 states.
[2020-12-17 17:18:27,516 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:27,516 INFO  L276                IsEmpty]: Start isEmpty. Operand 615 states.
[2020-12-17 17:18:27,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-12-17 17:18:27,518 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:18:27,518 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:18:27,518 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-12-17 17:18:27,518 INFO  L429      AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:18:27,519 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:18:27,519 INFO  L82        PathProgramCache]: Analyzing trace with hash 1622631359, now seen corresponding path program 3 times
[2020-12-17 17:18:27,519 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:18:27,520 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596495530]
[2020-12-17 17:18:27,520 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:18:27,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:18:27,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:18:27,616 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596495530]
[2020-12-17 17:18:27,616 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:18:27,616 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:18:27,616 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842413798]
[2020-12-17 17:18:27,617 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:18:27,617 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:18:27,618 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:18:27,618 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:18:27,618 INFO  L87              Difference]: Start difference. First operand 615 states. Second operand  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:27,709 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:18:27,709 INFO  L93              Difference]: Finished difference Result 507 states and 1379 transitions.
[2020-12-17 17:18:27,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-12-17 17:18:27,709 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2020-12-17 17:18:27,710 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:18:27,710 INFO  L225             Difference]: With dead ends: 507
[2020-12-17 17:18:27,710 INFO  L226             Difference]: Without dead ends: 0
[2020-12-17 17:18:27,710 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:18:27,710 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states. Word has length 54
[2020-12-17 17:18:27,711 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:18:27,711 INFO  L481      AbstractCegarLoop]: Abstraction has 0 states.
[2020-12-17 17:18:27,711 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:18:27,711 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states.
[2020-12-17 17:18:27,711 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-12-17 17:18:27,711 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-12-17 17:18:27,717 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:18:27 BasicIcfg
[2020-12-17 17:18:27,717 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-17 17:18:27,720 INFO  L168              Benchmark]: Toolchain (without parser) took 7674.62 ms. Allocated memory was 302.0 MB in the beginning and 660.6 MB in the end (delta: 358.6 MB). Free memory was 277.4 MB in the beginning and 464.5 MB in the end (delta: -187.2 MB). Peak memory consumption was 173.9 MB. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,720 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,722 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 758.21 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 246.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,728 INFO  L168              Benchmark]: Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 302.0 MB. Free memory was 246.4 MB in the beginning and 244.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,729 INFO  L168              Benchmark]: Boogie Preprocessor took 28.95 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 243.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,730 INFO  L168              Benchmark]: RCFGBuilder took 752.87 ms. Allocated memory is still 302.0 MB. Free memory was 243.1 MB in the beginning and 262.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,733 INFO  L168              Benchmark]: TraceAbstraction took 6068.94 ms. Allocated memory was 302.0 MB in the beginning and 660.6 MB in the end (delta: 358.6 MB). Free memory was 261.7 MB in the beginning and 464.5 MB in the end (delta: -202.9 MB). Peak memory consumption was 158.9 MB. Max. memory is 16.0 GB.
[2020-12-17 17:18:27,744 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 758.21 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 246.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 302.0 MB. Free memory was 246.4 MB in the beginning and 244.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 28.95 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 243.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB.
 * RCFGBuilder took 752.87 ms. Allocated memory is still 302.0 MB. Free memory was 243.1 MB in the beginning and 262.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 6068.94 ms. Allocated memory was 302.0 MB in the beginning and 660.6 MB in the end (delta: 358.6 MB). Free memory was 261.7 MB in the beginning and 464.5 MB in the end (delta: -202.9 MB). Peak memory consumption was 158.9 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 955 SDtfs, 1230 SDslu, 3198 SDs, 0 SdLazy, 401 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 57217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...