/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 07:18:12,867 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-02-09 07:18:12,868 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-02-09 07:18:12,937 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-02-09 07:18:12,946 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-02-09 07:18:12,946 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2022-02-09 07:18:12,953 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-09 07:18:12,954 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-09 07:18:12,959 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-NewStatesSleep-NoLbe.epf
[2022-02-09 07:18:12,985 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-09 07:18:12,986 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 07:18:12,986 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 07:18:12,986 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 07:18:12,987 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 07:18:12,987 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 07:18:12,987 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 07:18:12,987 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-09 07:18:12,987 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-09 07:18:12,987 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-09 07:18:12,988 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-09 07:18:12,989 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-09 07:18:12,989 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-09 07:18:12,989 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 07:18:12,989 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-09 07:18:12,989 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 07:18:12,990 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 07:18:12,990 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-09 07:18:12,991 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-09 07:18:12,991 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 07:18:12,991 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2022-02-09 07:18:12,991 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 07:18:13,180 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 07:18:13,206 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 07:18:13,208 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 07:18:13,208 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-02-09 07:18:13,213 INFO  L275        PluginConnector]: CDTParser initialized
[2022-02-09 07:18:13,213 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c
[2022-02-09 07:18:13,267 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d557d85d/fd2fe80a18eb43599c8974630006b679/FLAGd22cc9ef1
[2022-02-09 07:18:13,587 INFO  L306              CDTParser]: Found 1 translation units.
[2022-02-09 07:18:13,587 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c
[2022-02-09 07:18:13,592 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d557d85d/fd2fe80a18eb43599c8974630006b679/FLAGd22cc9ef1
[2022-02-09 07:18:14,008 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d557d85d/fd2fe80a18eb43599c8974630006b679
[2022-02-09 07:18:14,009 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 07:18:14,010 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-09 07:18:14,011 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-09 07:18:14,011 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-09 07:18:14,013 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-09 07:18:14,014 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,014 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d448f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14, skipping insertion in model container
[2022-02-09 07:18:14,014 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,019 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-02-09 07:18:14,035 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-02-09 07:18:14,263 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703]
[2022-02-09 07:18:14,284 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-09 07:18:14,292 INFO  L203         MainTranslator]: Completed pre-run
[2022-02-09 07:18:14,322 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703]
[2022-02-09 07:18:14,330 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-09 07:18:14,339 INFO  L208         MainTranslator]: Completed translation
[2022-02-09 07:18:14,340 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14 WrapperNode
[2022-02-09 07:18:14,340 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-09 07:18:14,341 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 07:18:14,341 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 07:18:14,342 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 07:18:14,346 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,361 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,384 INFO  L137                Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 121
[2022-02-09 07:18:14,385 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 07:18:14,385 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 07:18:14,385 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 07:18:14,385 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 07:18:14,391 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,391 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,403 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,403 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,417 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,420 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,421 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,423 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 07:18:14,424 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 07:18:14,424 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 07:18:14,424 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-09 07:18:14,429 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (1/1) ...
[2022-02-09 07:18:14,434 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 07:18:14,442 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:14,453 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-09 07:18:14,484 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-09 07:18:14,496 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-02-09 07:18:14,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-02-09 07:18:14,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-02-09 07:18:14,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-09 07:18:14,497 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-02-09 07:18:14,498 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 07:18:14,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 07:18:14,498 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-09 07:18:14,499 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-09 07:18:14,574 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-09 07:18:14,575 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 07:18:14,867 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-09 07:18:14,894 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 07:18:14,894 INFO  L299             CfgBuilder]: Removed 5 assume(true) statements.
[2022-02-09 07:18:14,896 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:18:14 BoogieIcfgContainer
[2022-02-09 07:18:14,896 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 07:18:14,897 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 07:18:14,897 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 07:18:14,904 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-09 07:18:14,904 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 07:18:14" (1/3) ...
[2022-02-09 07:18:14,905 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da4a0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:18:14, skipping insertion in model container
[2022-02-09 07:18:14,905 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:18:14" (2/3) ...
[2022-02-09 07:18:14,905 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da4a0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:18:14, skipping insertion in model container
[2022-02-09 07:18:14,905 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:18:14" (3/3) ...
[2022-02-09 07:18:14,906 INFO  L111   eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c
[2022-02-09 07:18:14,910 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 07:18:14,910 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 07:18:14,910 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 07:18:14,910 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 07:18:14,956 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,957 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,957 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,957 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,958 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,959 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,959 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,959 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,959 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,959 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,960 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,961 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,961 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,961 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,961 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,961 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,961 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,962 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,962 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,962 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,962 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,962 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,962 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,963 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,963 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,963 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,963 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,963 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,964 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,965 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,966 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,966 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,966 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,966 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,966 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,966 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,967 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,967 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,967 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,967 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,967 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,967 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,968 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,968 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,968 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,968 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,968 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,968 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,969 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,970 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,970 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,980 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,981 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,981 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,981 WARN  L322   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,981 WARN  L322   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,982 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,983 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,983 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,983 WARN  L322   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,983 WARN  L322   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 07:18:14,986 INFO  L148    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-02-09 07:18:15,022 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-09 07:18:15,027 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:15,039 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-02-09 07:18:15,040 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-02-09 07:18:15,078 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 07:18:15,084 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-09 07:18:15,084 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-09 07:18:15,185 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:15,191 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:15,191 INFO  L85        PathProgramCache]: Analyzing trace with hash -1207374193, now seen corresponding path program 1 times
[2022-02-09 07:18:15,199 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:15,200 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047449473]
[2022-02-09 07:18:15,200 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:15,201 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:15,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:15,396 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 07:18:15,397 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:15,397 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047449473]
[2022-02-09 07:18:15,397 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047449473] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 07:18:15,398 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 07:18:15,398 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-09 07:18:15,399 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983858848]
[2022-02-09 07:18:15,401 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:15,407 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-09 07:18:15,407 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:15,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-09 07:18:15,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-09 07:18:15,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:15,428 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:15,430 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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)
[2022-02-09 07:18:15,430 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:15,474 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:15,474 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 07:18:15,475 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:15,477 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:15,478 INFO  L85        PathProgramCache]: Analyzing trace with hash -1092060821, now seen corresponding path program 1 times
[2022-02-09 07:18:15,478 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:15,478 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646382220]
[2022-02-09 07:18:15,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:15,478 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:15,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:16,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 07:18:16,359 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:16,359 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646382220]
[2022-02-09 07:18:16,359 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646382220] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 07:18:16,359 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 07:18:16,360 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2022-02-09 07:18:16,360 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526941639]
[2022-02-09 07:18:16,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:16,362 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2022-02-09 07:18:16,362 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:16,362 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2022-02-09 07:18:16,362 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2022-02-09 07:18:16,363 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:16,363 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:16,364 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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)
[2022-02-09 07:18:16,364 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:16,364 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,192 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2022-02-09 07:18:17,193 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-09 07:18:17,193 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:17,193 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:17,194 INFO  L85        PathProgramCache]: Analyzing trace with hash -1720115572, now seen corresponding path program 1 times
[2022-02-09 07:18:17,194 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:17,194 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847525181]
[2022-02-09 07:18:17,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:17,194 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:17,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:17,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 07:18:17,304 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:17,304 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847525181]
[2022-02-09 07:18:17,304 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847525181] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 07:18:17,304 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 07:18:17,304 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 07:18:17,305 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795157109]
[2022-02-09 07:18:17,305 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:17,305 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 07:18:17,305 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:17,305 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 07:18:17,306 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-02-09 07:18:17,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,306 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:17,306 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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)
[2022-02-09 07:18:17,306 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,306 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. 
[2022-02-09 07:18:17,306 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,499 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:17,499 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:17,499 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-09 07:18:17,500 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:17,500 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:17,500 INFO  L85        PathProgramCache]: Analyzing trace with hash -523815149, now seen corresponding path program 1 times
[2022-02-09 07:18:17,500 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:17,501 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410738083]
[2022-02-09 07:18:17,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:17,501 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:17,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:17,571 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 07:18:17,572 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:17,572 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410738083]
[2022-02-09 07:18:17,572 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410738083] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 07:18:17,572 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 07:18:17,572 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 07:18:17,572 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792931650]
[2022-02-09 07:18:17,573 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:17,573 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 07:18:17,573 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:17,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 07:18:17,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-02-09 07:18:17,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,574 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:17,574 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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)
[2022-02-09 07:18:17,574 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:17,574 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:17,574 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:17,574 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:18,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:18,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:18,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:18,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:18,061 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-09 07:18:18,062 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:18,062 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:18,062 INFO  L85        PathProgramCache]: Analyzing trace with hash -284261367, now seen corresponding path program 1 times
[2022-02-09 07:18:18,062 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:18,063 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416732658]
[2022-02-09 07:18:18,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:18,063 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:18,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:18,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-02-09 07:18:18,143 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:18,143 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416732658]
[2022-02-09 07:18:18,144 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416732658] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:18,144 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748238129]
[2022-02-09 07:18:18,144 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:18,144 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:18,144 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:18,159 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:18,186 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-09 07:18:18,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:18,282 INFO  L263         TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-02-09 07:18:18,292 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:18,611 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-02-09 07:18:18,611 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:18,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-02-09 07:18:18,875 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748238129] provided 1 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:18,875 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2022-02-09 07:18:18,876 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14
[2022-02-09 07:18:18,876 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172037228]
[2022-02-09 07:18:18,876 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:18,876 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 07:18:18,876 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:18,877 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 07:18:18,877 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182
[2022-02-09 07:18:18,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:18,877 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:18,877 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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)
[2022-02-09 07:18:18,877 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:18,877 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:18,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:18,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:18,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:18,953 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:18,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:18,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:18,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:18,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:18,974 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:19,167 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:19,168 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:19,168 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:19,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 1117494965, now seen corresponding path program 1 times
[2022-02-09 07:18:19,168 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:19,168 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133257330]
[2022-02-09 07:18:19,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:19,169 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:19,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:19,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-09 07:18:19,236 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:19,236 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133257330]
[2022-02-09 07:18:19,236 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133257330] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:19,237 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070377592]
[2022-02-09 07:18:19,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:19,237 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:19,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:19,238 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:19,239 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-09 07:18:19,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:19,338 INFO  L263         TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-02-09 07:18:19,340 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:19,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-09 07:18:19,611 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:19,966 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-09 07:18:19,967 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070377592] provided 1 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:19,967 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2022-02-09 07:18:19,967 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14
[2022-02-09 07:18:19,967 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52094519]
[2022-02-09 07:18:19,967 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:19,967 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 07:18:19,967 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:19,968 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 07:18:19,968 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182
[2022-02-09 07:18:19,968 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:19,968 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:19,968 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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)
[2022-02-09 07:18:19,968 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:19,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:19,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:19,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:19,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:19,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:20,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:20,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:20,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:20,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:20,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:20,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:20,056 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-02-09 07:18:20,251 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:20,252 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:20,252 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:20,252 INFO  L85        PathProgramCache]: Analyzing trace with hash -1717468103, now seen corresponding path program 1 times
[2022-02-09 07:18:20,252 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:20,252 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145512734]
[2022-02-09 07:18:20,252 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:20,252 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:20,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:20,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:20,324 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:20,324 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145512734]
[2022-02-09 07:18:20,324 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145512734] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:20,325 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64358381]
[2022-02-09 07:18:20,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:20,325 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:20,325 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:20,331 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:20,358 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-09 07:18:20,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:20,428 INFO  L263         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-02-09 07:18:20,430 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:20,686 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:20,687 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:21,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:21,005 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [64358381] provided 1 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:21,006 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2022-02-09 07:18:21,006 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14
[2022-02-09 07:18:21,006 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306034048]
[2022-02-09 07:18:21,006 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 07:18:21,006 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 07:18:21,007 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:21,007 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 07:18:21,007 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182
[2022-02-09 07:18:21,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:21,008 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:21,008 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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)
[2022-02-09 07:18:21,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:21,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:21,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:21,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:21,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,009 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,009 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:21,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:21,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:21,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:21,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:21,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,126 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:21,290 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:21,290 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:21,291 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:21,291 INFO  L85        PathProgramCache]: Analyzing trace with hash 1335029758, now seen corresponding path program 1 times
[2022-02-09 07:18:21,291 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:21,291 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607345827]
[2022-02-09 07:18:21,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:21,292 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:21,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:21,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:21,378 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:21,379 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607345827]
[2022-02-09 07:18:21,379 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607345827] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:21,379 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233293241]
[2022-02-09 07:18:21,379 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:21,379 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:21,379 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:21,380 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:21,407 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-09 07:18:21,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:21,516 INFO  L263         TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-02-09 07:18:21,519 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:21,742 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:21,742 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:21,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:21,940 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [233293241] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:21,940 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:21,940 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2022-02-09 07:18:21,940 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267908709]
[2022-02-09 07:18:21,940 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:21,941 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-02-09 07:18:21,941 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:21,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-02-09 07:18:21,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132
[2022-02-09 07:18:21,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:21,942 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:21,942 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 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)
[2022-02-09 07:18:21,942 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:21,942 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:21,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:21,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:21,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:21,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:22,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:22,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-02-09 07:18:22,075 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-02-09 07:18:22,255 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:22,256 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:22,256 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:22,256 INFO  L85        PathProgramCache]: Analyzing trace with hash 610607354, now seen corresponding path program 2 times
[2022-02-09 07:18:22,256 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:22,256 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672877407]
[2022-02-09 07:18:22,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:22,257 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:22,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:22,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:22,363 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:22,364 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672877407]
[2022-02-09 07:18:22,364 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672877407] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:22,364 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15695592]
[2022-02-09 07:18:22,364 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 07:18:22,364 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:22,365 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:22,380 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:22,407 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-09 07:18:22,527 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 07:18:22,528 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:22,529 INFO  L263         TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-02-09 07:18:22,532 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:22,764 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:22,764 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:22,937 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 07:18:22,937 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [15695592] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:22,937 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:22,937 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21
[2022-02-09 07:18:22,938 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236439294]
[2022-02-09 07:18:22,938 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:22,938 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 07:18:22,938 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:22,939 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 07:18:22,939 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420
[2022-02-09 07:18:22,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:22,939 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:22,940 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 13.857142857142858) internal successors, (291), 21 states have internal predecessors, (291), 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)
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2022-02-09 07:18:22,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:25,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-02-09 07:18:25,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. 
[2022-02-09 07:18:25,188 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:25,343 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:25,344 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:25,344 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:25,344 INFO  L85        PathProgramCache]: Analyzing trace with hash -281238465, now seen corresponding path program 3 times
[2022-02-09 07:18:25,344 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:25,344 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669615332]
[2022-02-09 07:18:25,345 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:25,345 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:25,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:25,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2022-02-09 07:18:25,483 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:25,483 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669615332]
[2022-02-09 07:18:25,483 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669615332] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:25,483 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797193157]
[2022-02-09 07:18:25,483 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 07:18:25,483 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:25,484 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:25,485 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:25,486 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-09 07:18:25,613 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-02-09 07:18:25,613 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:25,615 INFO  L263         TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-02-09 07:18:25,617 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:25,928 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2022-02-09 07:18:25,928 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:26,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2022-02-09 07:18:26,173 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797193157] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:26,174 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:26,174 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21
[2022-02-09 07:18:26,175 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615902478]
[2022-02-09 07:18:26,175 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:26,176 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 07:18:26,176 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:26,177 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 07:18:26,177 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420
[2022-02-09 07:18:26,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:26,177 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:26,178 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 13.0) internal successors, (273), 21 states have internal predecessors, (273), 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)
[2022-02-09 07:18:26,178 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. 
[2022-02-09 07:18:26,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:26,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. 
[2022-02-09 07:18:26,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:26,725 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:26,904 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:26,904 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:26,905 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:26,905 INFO  L85        PathProgramCache]: Analyzing trace with hash 2296975, now seen corresponding path program 4 times
[2022-02-09 07:18:26,905 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:26,905 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854361155]
[2022-02-09 07:18:26,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:26,905 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:27,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:27,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2022-02-09 07:18:27,096 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:27,096 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854361155]
[2022-02-09 07:18:27,096 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854361155] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:27,096 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332910137]
[2022-02-09 07:18:27,097 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 07:18:27,097 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:27,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:27,111 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:27,117 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-02-09 07:18:27,286 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 07:18:27,286 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:27,289 INFO  L263         TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-02-09 07:18:27,292 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:27,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2022-02-09 07:18:27,652 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:27,953 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2022-02-09 07:18:27,953 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332910137] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:27,954 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:27,954 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18
[2022-02-09 07:18:27,954 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991581763]
[2022-02-09 07:18:27,954 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:27,955 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-02-09 07:18:27,955 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:27,955 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-02-09 07:18:27,955 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306
[2022-02-09 07:18:27,956 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:27,956 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:27,956 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 10.722222222222221) internal successors, (193), 18 states have internal predecessors, (193), 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)
[2022-02-09 07:18:27,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:27,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:27,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:27,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:27,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:27,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:27,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:27,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-02-09 07:18:27,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. 
[2022-02-09 07:18:27,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:27,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:28,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:28,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:28,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-02-09 07:18:28,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. 
[2022-02-09 07:18:28,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:28,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2022-02-09 07:18:28,320 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:28,503 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2022-02-09 07:18:28,504 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:28,504 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:28,504 INFO  L85        PathProgramCache]: Analyzing trace with hash -1470318701, now seen corresponding path program 5 times
[2022-02-09 07:18:28,504 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:28,504 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924174268]
[2022-02-09 07:18:28,504 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:28,505 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:28,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:28,654 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2022-02-09 07:18:28,655 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:28,655 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924174268]
[2022-02-09 07:18:28,655 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924174268] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:28,655 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808701117]
[2022-02-09 07:18:28,655 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 07:18:28,655 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:28,656 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:28,660 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:28,662 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2022-02-09 07:18:28,815 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2022-02-09 07:18:28,816 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:28,818 INFO  L263         TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-02-09 07:18:28,821 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:29,315 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2022-02-09 07:18:29,315 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:29,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2022-02-09 07:18:29,813 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808701117] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:29,813 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:29,813 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34
[2022-02-09 07:18:29,814 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198540205]
[2022-02-09 07:18:29,814 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:29,815 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2022-02-09 07:18:29,815 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:29,815 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2022-02-09 07:18:29,815 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122
[2022-02-09 07:18:29,816 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:29,816 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:29,817 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 34 states, 34 states have (on average 7.088235294117647) internal successors, (241), 34 states have internal predecessors, (241), 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)
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. 
[2022-02-09 07:18:29,817 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:31,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:31,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:31,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2022-02-09 07:18:31,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:31,190 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:31,370 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:31,370 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:31,370 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:31,370 INFO  L85        PathProgramCache]: Analyzing trace with hash -1045272150, now seen corresponding path program 1 times
[2022-02-09 07:18:31,370 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:31,371 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52750665]
[2022-02-09 07:18:31,371 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:31,371 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:31,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:31,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2022-02-09 07:18:31,480 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:31,480 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52750665]
[2022-02-09 07:18:31,480 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52750665] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:31,480 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103351794]
[2022-02-09 07:18:31,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:31,481 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:31,481 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:31,482 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:31,483 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2022-02-09 07:18:31,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:31,588 INFO  L263         TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-02-09 07:18:31,590 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:32,075 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2022-02-09 07:18:32,075 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:32,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2022-02-09 07:18:32,525 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [103351794] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:32,526 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:32,526 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24
[2022-02-09 07:18:32,526 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564060521]
[2022-02-09 07:18:32,526 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:32,526 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2022-02-09 07:18:32,526 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:32,527 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2022-02-09 07:18:32,527 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552
[2022-02-09 07:18:32,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:32,527 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:32,527 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 24 states have (on average 10.041666666666666) internal successors, (241), 24 states have internal predecessors, (241), 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)
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:32,528 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:36,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:36,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:36,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:36,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:36,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:36,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:36,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:36,286 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:36,462 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2022-02-09 07:18:36,463 INFO  L402      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:36,463 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:36,463 INFO  L85        PathProgramCache]: Analyzing trace with hash 984360881, now seen corresponding path program 6 times
[2022-02-09 07:18:36,463 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:36,463 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133110286]
[2022-02-09 07:18:36,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:36,464 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:36,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:36,622 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2022-02-09 07:18:36,622 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:36,622 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133110286]
[2022-02-09 07:18:36,622 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133110286] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:36,622 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96925252]
[2022-02-09 07:18:36,622 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 07:18:36,622 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:36,623 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:36,623 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:36,624 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2022-02-09 07:18:36,778 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2022-02-09 07:18:36,778 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:36,781 INFO  L263         TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 12 conjunts are in the unsatisfiable core
[2022-02-09 07:18:36,783 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:37,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2022-02-09 07:18:37,164 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:37,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2022-02-09 07:18:37,449 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [96925252] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:37,449 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:37,449 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 31
[2022-02-09 07:18:37,449 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203226160]
[2022-02-09 07:18:37,449 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:37,450 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2022-02-09 07:18:37,450 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:37,450 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2022-02-09 07:18:37,451 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930
[2022-02-09 07:18:37,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:37,451 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:37,451 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 31 states, 31 states have (on average 9.838709677419354) internal successors, (305), 31 states have internal predecessors, (305), 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)
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:37,451 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:37,452 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:38,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:38,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:38,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:38,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:38,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:38,364 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2022-02-09 07:18:38,543 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2022-02-09 07:18:38,543 INFO  L402      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:38,544 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:38,544 INFO  L85        PathProgramCache]: Analyzing trace with hash 591668069, now seen corresponding path program 7 times
[2022-02-09 07:18:38,544 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:38,544 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032883605]
[2022-02-09 07:18:38,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:38,544 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:38,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:38,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2022-02-09 07:18:38,722 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:38,722 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032883605]
[2022-02-09 07:18:38,722 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032883605] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:38,722 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175858507]
[2022-02-09 07:18:38,723 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 07:18:38,723 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:38,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:38,724 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:38,725 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2022-02-09 07:18:38,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:38,841 INFO  L263         TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-02-09 07:18:38,843 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:39,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2022-02-09 07:18:39,295 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:39,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 96 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2022-02-09 07:18:39,866 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175858507] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:39,866 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:39,866 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34
[2022-02-09 07:18:39,866 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152625177]
[2022-02-09 07:18:39,866 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:39,867 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2022-02-09 07:18:39,867 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:39,867 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2022-02-09 07:18:39,868 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122
[2022-02-09 07:18:39,868 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:39,868 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:39,868 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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)
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:39,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:39,869 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:39,869 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:39,869 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:39,869 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:39,869 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:40,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:40,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:40,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:40,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:40,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2022-02-09 07:18:40,501 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:40,691 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2022-02-09 07:18:40,691 INFO  L402      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:40,692 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:40,692 INFO  L85        PathProgramCache]: Analyzing trace with hash -1052563630, now seen corresponding path program 8 times
[2022-02-09 07:18:40,692 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:40,692 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608795007]
[2022-02-09 07:18:40,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:40,692 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:40,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:40,816 INFO  L134       CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2022-02-09 07:18:40,817 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:40,817 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608795007]
[2022-02-09 07:18:40,817 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608795007] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:40,817 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486943376]
[2022-02-09 07:18:40,817 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 07:18:40,817 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:40,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:40,832 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:40,833 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2022-02-09 07:18:40,968 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 07:18:40,968 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:40,970 INFO  L263         TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-02-09 07:18:40,972 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:41,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2022-02-09 07:18:41,349 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:41,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2022-02-09 07:18:41,667 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486943376] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:41,668 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:41,668 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 25
[2022-02-09 07:18:41,668 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217151866]
[2022-02-09 07:18:41,668 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:41,668 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2022-02-09 07:18:41,668 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:41,669 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2022-02-09 07:18:41,669 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600
[2022-02-09 07:18:41,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:41,669 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:41,669 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 25 states, 25 states have (on average 8.6) internal successors, (215), 25 states have internal predecessors, (215), 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)
[2022-02-09 07:18:41,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:41,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:41,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:41,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:41,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:41,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. 
[2022-02-09 07:18:41,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:42,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:42,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:42,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2022-02-09 07:18:42,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2022-02-09 07:18:42,144 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2022-02-09 07:18:42,319 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2022-02-09 07:18:42,320 INFO  L402      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 07:18:42,320 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 07:18:42,320 INFO  L85        PathProgramCache]: Analyzing trace with hash 1120622670, now seen corresponding path program 9 times
[2022-02-09 07:18:42,320 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 07:18:42,320 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493545193]
[2022-02-09 07:18:42,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 07:18:42,321 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 07:18:42,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 07:18:42,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 29 proven. 32 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked.
[2022-02-09 07:18:42,507 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 07:18:42,507 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493545193]
[2022-02-09 07:18:42,507 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493545193] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 07:18:42,507 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530120226]
[2022-02-09 07:18:42,508 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 07:18:42,508 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:18:42,508 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 07:18:42,524 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 07:18:42,524 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2022-02-09 07:18:42,674 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-02-09 07:18:42,674 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 07:18:42,676 INFO  L263         TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-02-09 07:18:42,677 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 07:18:43,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2022-02-09 07:18:43,033 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 07:18:43,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2022-02-09 07:18:43,339 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [530120226] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 07:18:43,339 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 07:18:43,339 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 8] total 26
[2022-02-09 07:18:43,339 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352308475]
[2022-02-09 07:18:43,339 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 07:18:43,341 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2022-02-09 07:18:43,341 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 07:18:43,341 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2022-02-09 07:18:43,342 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650
[2022-02-09 07:18:43,342 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:43,342 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 07:18:43,342 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 26 states, 26 states have (on average 12.076923076923077) internal successors, (314), 26 states have internal predecessors, (314), 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)
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:18:43,342 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. 
[2022-02-09 07:18:43,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:19:04,685 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2022-02-09 07:19:04,686 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. 
[2022-02-09 07:19:04,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. 
[2022-02-09 07:19:04,690 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2022-02-09 07:19:04,690 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-09 07:19:04,690 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-09 07:19:04,691 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-09 07:19:04,708 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2022-02-09 07:19:04,904 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 07:19:04,912 INFO  L732         BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 07:19:04,914 INFO  L230   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 07:19:04,914 INFO  L180   ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 07:19:04,915 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 07:19:04 BasicIcfg
[2022-02-09 07:19:04,915 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 07:19:04,916 INFO  L158              Benchmark]: Toolchain (without parser) took 50905.52ms. Allocated memory was 182.5MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 131.1MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
[2022-02-09 07:19:04,916 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 147.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 07:19:04,916 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 329.51ms. Allocated memory is still 182.5MB. Free memory was 130.9MB in the beginning and 157.0MB in the end (delta: -26.2MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB.
[2022-02-09 07:19:04,916 INFO  L158              Benchmark]: Boogie Procedure Inliner took 43.29ms. Allocated memory is still 182.5MB. Free memory was 157.0MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-09 07:19:04,916 INFO  L158              Benchmark]: Boogie Preprocessor took 38.06ms. Allocated memory is still 182.5MB. Free memory was 155.0MB in the beginning and 153.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-09 07:19:04,916 INFO  L158              Benchmark]: RCFGBuilder took 472.51ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 136.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
[2022-02-09 07:19:04,917 INFO  L158              Benchmark]: TraceAbstraction took 50018.05ms. Allocated memory was 182.5MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 136.1MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
[2022-02-09 07:19:04,918 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 147.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 329.51ms. Allocated memory is still 182.5MB. Free memory was 130.9MB in the beginning and 157.0MB in the end (delta: -26.2MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 43.29ms. Allocated memory is still 182.5MB. Free memory was 157.0MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 38.06ms. Allocated memory is still 182.5MB. Free memory was 155.0MB in the beginning and 153.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 472.51ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 136.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
 * TraceAbstraction took 50018.05ms. Allocated memory was 182.5MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 136.1MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1905002, positive: 1607838, positive conditional: 1607838, positive unconditional: 0, negative: 297164, negative conditional: 297164, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1616357, positive: 1607838, positive conditional: 1607838, positive unconditional: 0, negative: 8519, negative conditional: 8519, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1616357, positive: 1607838, positive conditional: 1607838, positive unconditional: 0, negative: 8519, negative conditional: 8519, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1744234, positive: 1607838, positive conditional: 1607678, positive unconditional: 160, negative: 136396, negative conditional: 127877, negative unconditional: 8519, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1744234, positive: 1607838, positive conditional: 1246554, positive unconditional: 361284, negative: 136396, negative conditional: 61883, negative unconditional: 74513, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1744234, positive: 1607838, positive conditional: 1246554, positive unconditional: 361284, negative: 136396, negative conditional: 61883, negative unconditional: 74513, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8797, positive: 8466, positive conditional: 7797, positive unconditional: 669, negative: 331, negative conditional: 321, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8797, positive: 8458, positive conditional: 0, positive unconditional: 8458, negative: 339, negative conditional: 0, negative unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 339, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 331, negative conditional: 321, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 641, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 599, negative conditional: 556, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 1744234, positive: 1599372, positive conditional: 1238757, positive unconditional: 360615, negative: 136065, negative conditional: 61562, negative unconditional: 74503, unknown: 8797, unknown conditional: 8118, unknown unconditional: 679] , Statistics on independence cache: Total cache size (in pairs): 8797, Positive cache size: 8466, Positive conditional cache size: 7797, Positive unconditional cache size: 669, Negative cache size: 331, Negative conditional cache size: 321, Negative unconditional cache size: 10, Eliminated conditions: 427118, Maximal queried relation: 16, Independence queries for same thread: 288645
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 103]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 7 procedures, 206 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 49.9s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 33.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 573, 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: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 5231 NumberOfCodeBlocks, 5193 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 7546 ConstructedInterpolants, 0 QuantifiedInterpolants, 20035 SizeOfPredicates, 113 NumberOfNonLiveVariables, 5215 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 43 InterpolantComputations, 7 PerfectInterpolantSequences, 1481/1841 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-09 07:19:04,941 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0
[2022-02-09 07:19:05,157 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...