/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longest-1.i


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


This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3
[2021-06-17 10:57:26,342 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-06-17 10:57:26,357 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2021-06-17 10:57:26,411 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-06-17 10:57:26,437 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-06-17 10:57:26,438 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2021-06-17 10:57:26,447 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-06-17 10:57:26,448 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-06-17 10:57:26,449 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-06-17 10:57:26,450 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-06-17 10:57:26,451 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-06-17 10:57:26,452 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-06-17 10:57:26,477 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-06-17 10:57:26,480 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-06-17 10:57:26,485 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-06-17 10:57:26,489 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-06-17 10:57:26,490 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-06-17 10:57:26,498 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-06-17 10:57:26,498 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2021-06-17 10:57:26,504 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2021-06-17 10:57:26,522 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-06-17 10:57:26,525 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-06-17 10:57:26,529 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf
[2021-06-17 10:57:26,587 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-06-17 10:57:26,588 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-17 10:57:26,588 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-17 10:57:26,588 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-17 10:57:26,591 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-17 10:57:26,591 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-06-17 10:57:26,591 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-06-17 10:57:26,592 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-17 10:57:26,592 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-06-17 10:57:26,592 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-06-17 10:57:26,593 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-06-17 10:57:26,593 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-06-17 10:57:26,593 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-06-17 10:57:26,593 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-17 10:57:26,593 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-06-17 10:57:26,594 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-06-17 10:57:26,594 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-06-17 10:57:26,594 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-06-17 10:57:26,594 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-06-17 10:57:26,616 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-17 10:57:26,616 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-06-17 10:57:26,616 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-06-17 10:57:26,616 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-06-17 10:57:26,617 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-17 10:57:26,617 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-17 10:57:26,617 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-06-17 10:57:26,617 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-17 10:57:26,617 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-06-17 10:57:26,617 INFO  L138        SettingsManager]:  * DFS Order used in POR=RANDOM
[2021-06-17 10:57:26,618 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-17 10:57:26,618 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-06-17 10:57:26,618 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-06-17 10:57:26,632 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-17 10:57:26,633 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2021-06-17 10:57:26,633 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-06-17 10:57:26,633 INFO  L138        SettingsManager]:  * Random seed used by POR DFS order=42
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-17 10:57:27,229 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-17 10:57:27,279 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-17 10:57:27,282 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-17 10:57:27,283 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-06-17 10:57:27,284 INFO  L275        PluginConnector]: CDTParser initialized
[2021-06-17 10:57:27,285 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longest-1.i
[2021-06-17 10:57:27,401 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0f5574a/a40bb7b1291c45baa9faef093685211c/FLAG056dfcb2f
[2021-06-17 10:57:28,314 INFO  L306              CDTParser]: Found 1 translation units.
[2021-06-17 10:57:28,314 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i
[2021-06-17 10:57:28,360 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0f5574a/a40bb7b1291c45baa9faef093685211c/FLAG056dfcb2f
[2021-06-17 10:57:28,399 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0f5574a/a40bb7b1291c45baa9faef093685211c
[2021-06-17 10:57:28,401 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-17 10:57:28,403 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-06-17 10:57:28,406 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-06-17 10:57:28,406 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-06-17 10:57:28,409 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-06-17 10:57:28,410 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.06 10:57:28" (1/1) ...
[2021-06-17 10:57:28,411 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58aeccdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:28, skipping insertion in model container
[2021-06-17 10:57:28,411 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.06 10:57:28" (1/1) ...
[2021-06-17 10:57:28,417 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-06-17 10:57:28,502 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-06-17 10:57:29,091 WARN  L224   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[30286,30299]
[2021-06-17 10:57:29,132 WARN  L224   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[31038,31051]
[2021-06-17 10:57:29,135 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-06-17 10:57:29,144 INFO  L203         MainTranslator]: Completed pre-run
[2021-06-17 10:57:29,212 WARN  L224   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[30286,30299]
[2021-06-17 10:57:29,221 WARN  L224   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[31038,31051]
[2021-06-17 10:57:29,228 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-06-17 10:57:29,352 INFO  L208         MainTranslator]: Completed translation
[2021-06-17 10:57:29,353 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29 WrapperNode
[2021-06-17 10:57:29,353 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-06-17 10:57:29,354 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-17 10:57:29,354 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-17 10:57:29,354 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-17 10:57:29,360 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,417 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,454 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-17 10:57:29,455 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-17 10:57:29,455 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-17 10:57:29,456 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-06-17 10:57:29,475 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,476 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,480 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,481 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,509 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,513 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,514 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
[2021-06-17 10:57:29,516 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-17 10:57:29,520 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-17 10:57:29,520 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-06-17 10:57:29,520 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-06-17 10:57:29,522 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-17 10:57:29,678 INFO  L130     BoogieDeclarations]: Found specification of procedure t1
[2021-06-17 10:57:29,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1
[2021-06-17 10:57:29,679 INFO  L130     BoogieDeclarations]: Found specification of procedure t2
[2021-06-17 10:57:29,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2
[2021-06-17 10:57:29,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-06-17 10:57:29,679 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-06-17 10:57:29,679 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-06-17 10:57:29,679 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-06-17 10:57:29,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-06-17 10:57:29,680 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-06-17 10:57:29,680 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-17 10:57:29,680 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-17 10:57:29,682 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-06-17 10:57:30,181 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-17 10:57:30,181 INFO  L299             CfgBuilder]: Removed 6 assume(true) statements.
[2021-06-17 10:57:30,183 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:57:30 BoogieIcfgContainer
[2021-06-17 10:57:30,183 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-17 10:57:30,184 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-17 10:57:30,184 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-06-17 10:57:30,187 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-06-17 10:57:30,188 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.06 10:57:28" (1/3) ...
[2021-06-17 10:57:30,188 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5806d75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 10:57:30, skipping insertion in model container
[2021-06-17 10:57:30,189 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 10:57:29" (2/3) ...
[2021-06-17 10:57:30,189 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5806d75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 10:57:30, skipping insertion in model container
[2021-06-17 10:57:30,189 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:57:30" (3/3) ...
[2021-06-17 10:57:30,190 INFO  L111   eAbstractionObserver]: Analyzing ICFG fib_bench_longest-1.i
[2021-06-17 10:57:30,195 WARN  L148   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-17 10:57:30,195 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-17 10:57:30,196 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-17 10:57:30,196 INFO  L470   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-17 10:57:30,231 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,231 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,231 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,231 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,232 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,232 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,232 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,233 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,233 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,233 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,233 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,233 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,234 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,234 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,234 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,234 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,234 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,235 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,235 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,235 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,236 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,237 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,237 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,237 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,238 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,238 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,238 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,238 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,238 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,239 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,240 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,242 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,242 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,243 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,244 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,245 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,245 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,245 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,246 WARN  L313   ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,246 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,246 WARN  L313   ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,251 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,252 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,252 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,253 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,253 WARN  L313   ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,253 WARN  L313   ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-17 10:57:30,254 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-06-17 10:57:30,270 INFO  L255      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-06-17 10:57:30,326 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-06-17 10:57:30,326 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-06-17 10:57:30,326 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-17 10:57:30,326 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-17 10:57:30,326 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-17 10:57:30,326 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-06-17 10:57:30,326 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-17 10:57:30,327 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-06-17 10:57:30,476 INFO  L430      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-17 10:57:30,480 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-17 10:57:30,480 INFO  L82        PathProgramCache]: Analyzing trace with hash 354083498, now seen corresponding path program 1 times
[2021-06-17 10:57:30,486 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-17 10:57:30,486 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303947550]
[2021-06-17 10:57:30,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-17 10:57:30,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-17 10:57:30,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2021-06-17 10:57:30,679 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-17 10:57:30,679 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303947550]
[2021-06-17 10:57:30,680 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303947550] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-17 10:57:30,680 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-17 10:57:30,680 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-06-17 10:57:30,680 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580102570]
[2021-06-17 10:57:30,684 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 2 states
[2021-06-17 10:57:30,684 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-17 10:57:30,695 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-06-17 10:57:30,697 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-06-17 10:57:30,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:30,698 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-17 10:57:30,700 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-17 10:57:30,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:30,728 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:30,729 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-17 10:57:30,729 INFO  L430      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-17 10:57:30,729 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-17 10:57:30,730 INFO  L82        PathProgramCache]: Analyzing trace with hash -1442867861, now seen corresponding path program 1 times
[2021-06-17 10:57:30,730 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-17 10:57:30,730 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074435779]
[2021-06-17 10:57:30,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-17 10:57:30,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-17 10:57:30,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2021-06-17 10:57:30,815 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-17 10:57:30,816 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074435779]
[2021-06-17 10:57:30,816 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074435779] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-17 10:57:30,816 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-17 10:57:30,816 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-17 10:57:30,816 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290022707]
[2021-06-17 10:57:30,817 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-06-17 10:57:30,818 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-17 10:57:30,819 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-06-17 10:57:30,819 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-06-17 10:57:30,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:30,819 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-17 10:57:30,819 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-17 10:57:30,819 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:30,820 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:31,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:31,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-17 10:57:31,072 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-06-17 10:57:31,072 INFO  L430      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-17 10:57:31,073 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-17 10:57:31,073 INFO  L82        PathProgramCache]: Analyzing trace with hash -572021420, now seen corresponding path program 1 times
[2021-06-17 10:57:31,073 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-17 10:57:31,073 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183064330]
[2021-06-17 10:57:31,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-17 10:57:31,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-17 10:57:31,302 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-17 10:57:31,302 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-17 10:57:31,303 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183064330]
[2021-06-17 10:57:31,303 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183064330] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-17 10:57:31,303 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339667586]
[2021-06-17 10:57:31,303 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-17 10:57:31,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-17 10:57:31,471 INFO  L263         TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-06-17 10:57:31,478 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-06-17 10:57:31,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-17 10:57:31,994 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [339667586] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-17 10:57:31,994 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-17 10:57:31,994 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17
[2021-06-17 10:57:31,994 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780477624]
[2021-06-17 10:57:31,995 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 17 states
[2021-06-17 10:57:31,995 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-17 10:57:31,995 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2021-06-17 10:57:31,996 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272
[2021-06-17 10:57:31,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:31,996 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-17 10:57:31,996 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-17 10:57:31,997 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:31,997 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-17 10:57:31,997 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:32,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-17 10:57:32,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-17 10:57:32,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2021-06-17 10:57:32,481 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-17 10:57:32,481 INFO  L430      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-17 10:57:32,481 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-17 10:57:32,482 INFO  L82        PathProgramCache]: Analyzing trace with hash 527447362, now seen corresponding path program 1 times
[2021-06-17 10:57:32,482 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-17 10:57:32,482 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438810315]
[2021-06-17 10:57:32,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-17 10:57:32,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-17 10:57:32,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-17 10:57:32,741 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-17 10:57:32,741 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438810315]
[2021-06-17 10:57:32,741 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438810315] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-17 10:57:32,741 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410243131]
[2021-06-17 10:57:32,741 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-17 10:57:32,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-17 10:57:32,859 INFO  L263         TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjunts are in the unsatisfiable core
[2021-06-17 10:57:32,862 INFO  L286         TraceCheckSpWp]: Computing forward predicates...