/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-20 05:38:49,961 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-02-20 05:38:49,963 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-20 05:38:50,004 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-20 05:38:50,004 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-20 05:38:50,005 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-20 05:38:50,006 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-20 05:38:50,007 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-20 05:38:50,008 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-20 05:38:50,009 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-20 05:38:50,009 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-02-20 05:38:50,010 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-20 05:38:50,010 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-20 05:38:50,011 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-20 05:38:50,011 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-20 05:38:50,012 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-20 05:38:50,013 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-20 05:38:50,013 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-20 05:38:50,014 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-20 05:38:50,019 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-20 05:38:50,023 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-20 05:38:50,025 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-20 05:38:50,026 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-02-20 05:38:50,026 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-20 05:38:50,028 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-20 05:38:50,028 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-20 05:38:50,028 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-20 05:38:50,029 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-20 05:38:50,029 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-20 05:38:50,030 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-20 05:38:50,030 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-20 05:38:50,030 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-20 05:38:50,031 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-20 05:38:50,031 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-20 05:38:50,032 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-20 05:38:50,032 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-20 05:38:50,033 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-20 05:38:50,033 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-20 05:38:50,033 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-20 05:38:50,033 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-20 05:38:50,034 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-20 05:38:50,035 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-MCRwithoutDepranks-Lazy.epf
[2022-02-20 05:38:50,058 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-20 05:38:50,058 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-20 05:38:50,059 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-20 05:38:50,059 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-20 05:38:50,059 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-20 05:38:50,060 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-20 05:38:50,060 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-20 05:38:50,060 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-20 05:38:50,060 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-20 05:38:50,060 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-20 05:38:50,061 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-20 05:38:50,062 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-20 05:38:50,062 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-20 05:38:50,062 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-20 05:38:50,063 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-20 05:38:50,063 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-20 05:38:50,063 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-20 05:38:50,063 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-20 05:38:50,063 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-20 05:38:50,063 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS
[2022-02-20 05:38:50,063 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-20 05:38:50,240 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-20 05:38:50,254 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-20 05:38:50,256 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-20 05:38:50,257 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-02-20 05:38:50,257 INFO  L275        PluginConnector]: CDTParser initialized
[2022-02-20 05:38:50,258 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i
[2022-02-20 05:38:50,322 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda6c6613/d1558dd6273b453db3aa98e9c73f7903/FLAGff72c27b6
[2022-02-20 05:38:50,751 INFO  L306              CDTParser]: Found 1 translation units.
[2022-02-20 05:38:50,751 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i
[2022-02-20 05:38:50,762 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda6c6613/d1558dd6273b453db3aa98e9c73f7903/FLAGff72c27b6
[2022-02-20 05:38:50,778 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda6c6613/d1558dd6273b453db3aa98e9c73f7903
[2022-02-20 05:38:50,781 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-20 05:38:50,786 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-20 05:38:50,787 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-20 05:38:50,787 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-20 05:38:50,790 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-20 05:38:50,790 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 05:38:50" (1/1) ...
[2022-02-20 05:38:50,791 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4804ea57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:50, skipping insertion in model container
[2022-02-20 05:38:50,791 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 05:38:50" (1/1) ...
[2022-02-20 05:38:50,797 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-02-20 05:38:50,846 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-02-20 05:38:51,109 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30132,30145]
[2022-02-20 05:38:51,119 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30481,30494]
[2022-02-20 05:38:51,125 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-20 05:38:51,131 INFO  L203         MainTranslator]: Completed pre-run
[2022-02-20 05:38:51,173 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30132,30145]
[2022-02-20 05:38:51,175 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30481,30494]
[2022-02-20 05:38:51,180 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-20 05:38:51,205 INFO  L208         MainTranslator]: Completed translation
[2022-02-20 05:38:51,205 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51 WrapperNode
[2022-02-20 05:38:51,206 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-20 05:38:51,207 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-20 05:38:51,207 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-20 05:38:51,207 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-20 05:38:51,212 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,242 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,259 INFO  L137                Inliner]: procedures = 167, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61
[2022-02-20 05:38:51,259 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-20 05:38:51,260 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-20 05:38:51,260 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-20 05:38:51,260 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-20 05:38:51,266 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,266 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,271 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,271 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,292 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,298 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,299 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,300 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-20 05:38:51,301 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-20 05:38:51,301 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-20 05:38:51,301 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-20 05:38:51,304 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (1/1) ...
[2022-02-20 05:38:51,310 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-20 05:38:51,320 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-20 05:38:51,332 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)
[2022-02-20 05:38:51,340 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
[2022-02-20 05:38:51,363 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2022-02-20 05:38:51,364 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2022-02-20 05:38:51,364 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-02-20 05:38:51,364 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-20 05:38:51,364 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-20 05:38:51,364 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-20 05:38:51,364 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-20 05:38:51,364 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-20 05:38:51,364 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-20 05:38:51,365 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-20 05:38:51,460 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-20 05:38:51,461 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-20 05:38:51,581 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-20 05:38:51,586 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-20 05:38:51,587 INFO  L299             CfgBuilder]: Removed 10 assume(true) statements.
[2022-02-20 05:38:51,588 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 05:38:51 BoogieIcfgContainer
[2022-02-20 05:38:51,588 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-20 05:38:51,590 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-20 05:38:51,590 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-20 05:38:51,592 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-20 05:38:51,592 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 05:38:50" (1/3) ...
[2022-02-20 05:38:51,593 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5585fa89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 05:38:51, skipping insertion in model container
[2022-02-20 05:38:51,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:38:51" (2/3) ...
[2022-02-20 05:38:51,593 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5585fa89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 05:38:51, skipping insertion in model container
[2022-02-20 05:38:51,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 05:38:51" (3/3) ...
[2022-02-20 05:38:51,594 INFO  L111   eAbstractionObserver]: Analyzing ICFG 17_szymanski.i
[2022-02-20 05:38:51,598 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-20 05:38:51,598 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-20 05:38:51,598 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-02-20 05:38:51,599 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-20 05:38:51,618 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,619 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,619 WARN  L322   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,619 WARN  L322   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,619 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,619 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,620 WARN  L322   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,620 WARN  L322   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,620 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,620 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,620 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,621 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,625 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,625 WARN  L322   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,626 WARN  L322   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,626 WARN  L322   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-20 05:38:51,627 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-20 05:38:51,670 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-20 05:38:51,670 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-20 05:38:51,674 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)
[2022-02-20 05:38:51,675 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
[2022-02-20 05:38:51,701 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-20 05:38:51,708 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true
[2022-02-20 05:38:51,708 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-20 05:38:51,826 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 80 transitions and produced 81 states.
[2022-02-20 05:38:51,828 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:38:51,836 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:38:51,838 INFO  L85        PathProgramCache]: Analyzing trace with hash -1671442980, now seen corresponding path program 1 times
[2022-02-20 05:38:51,849 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:38:51,849 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732003942]
[2022-02-20 05:38:51,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:38:51,850 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:38:51,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:38:52,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 05:38:52,056 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:38:52,056 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732003942]
[2022-02-20 05:38:52,057 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732003942] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:38:52,057 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:38:52,057 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-20 05:38:52,058 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424652101]
[2022-02-20 05:38:52,059 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:38:52,062 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-20 05:38:52,062 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:38:52,076 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-20 05:38:52,077 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-20 05:38:52,077 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,079 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:38:52,079 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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)
[2022-02-20 05:38:52,080 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,122 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 69 transitions and produced 70 states.
[2022-02-20 05:38:52,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,123 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-20 05:38:52,124 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:38:52,126 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:38:52,126 INFO  L85        PathProgramCache]: Analyzing trace with hash 1158632818, now seen corresponding path program 1 times
[2022-02-20 05:38:52,126 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:38:52,126 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348758135]
[2022-02-20 05:38:52,126 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:38:52,126 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:38:52,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:38:52,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 05:38:52,212 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:38:52,212 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348758135]
[2022-02-20 05:38:52,212 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348758135] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:38:52,212 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:38:52,212 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:38:52,213 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278439704]
[2022-02-20 05:38:52,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:38:52,214 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:38:52,214 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:38:52,214 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:38:52,214 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:38:52,215 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,215 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:38:52,215 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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)
[2022-02-20 05:38:52,215 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,215 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,259 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 63 transitions and produced 64 states.
[2022-02-20 05:38:52,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:38:52,260 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-20 05:38:52,260 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:38:52,261 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:38:52,261 INFO  L85        PathProgramCache]: Analyzing trace with hash -257500694, now seen corresponding path program 1 times
[2022-02-20 05:38:52,261 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:38:52,261 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311169697]
[2022-02-20 05:38:52,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:38:52,261 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:38:52,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:38:52,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 05:38:52,295 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:38:52,295 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311169697]
[2022-02-20 05:38:52,295 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311169697] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:38:52,295 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:38:52,296 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:38:52,296 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463564799]
[2022-02-20 05:38:52,296 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:38:52,296 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:38:52,296 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:38:52,297 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:38:52,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:38:52,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,297 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:38:52,297 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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)
[2022-02-20 05:38:52,297 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:52,297 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:38:52,298 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:58,534 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1761 transitions and produced 1743 states.
[2022-02-20 05:38:58,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:58,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:38:58,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:38:58,535 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-20 05:38:58,536 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:38:58,536 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:38:58,536 INFO  L85        PathProgramCache]: Analyzing trace with hash -1807760392, now seen corresponding path program 1 times
[2022-02-20 05:38:58,536 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:38:58,537 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526443590]
[2022-02-20 05:38:58,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:38:58,537 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:38:58,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:38:58,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 6894 backedges. 2031 proven. 0 refuted. 0 times theorem prover too weak. 4863 trivial. 0 not checked.
[2022-02-20 05:38:58,816 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:38:58,816 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526443590]
[2022-02-20 05:38:58,816 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526443590] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:38:58,816 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:38:58,816 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:38:58,816 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714950876]
[2022-02-20 05:38:58,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:38:58,817 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:38:58,817 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:38:58,818 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:38:58,818 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:38:58,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:58,818 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:38:58,818 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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)
[2022-02-20 05:38:58,818 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:38:58,818 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:38:58,818 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:38:58,819 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:00,189 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 639 transitions and produced 627 states.
[2022-02-20 05:39:00,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:00,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:00,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:00,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:00,191 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-20 05:39:00,191 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:39:00,191 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:39:00,192 INFO  L85        PathProgramCache]: Analyzing trace with hash -178024154, now seen corresponding path program 1 times
[2022-02-20 05:39:00,192 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:39:00,193 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823985307]
[2022-02-20 05:39:00,193 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:39:00,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:39:00,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:39:00,232 INFO  L134       CoverageAnalysis]: Checked inductivity of 700 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked.
[2022-02-20 05:39:00,233 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:39:00,233 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823985307]
[2022-02-20 05:39:00,233 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823985307] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:39:00,233 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:39:00,233 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:39:00,233 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756597141]
[2022-02-20 05:39:00,233 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:39:00,234 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:39:00,234 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:39:00,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:39:00,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:39:00,235 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:00,235 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:39:00,235 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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)
[2022-02-20 05:39:00,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:00,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:00,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:00,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:00,235 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:01,314 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 524 transitions and produced 512 states.
[2022-02-20 05:39:01,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:01,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,316 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-20 05:39:01,316 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:39:01,316 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:39:01,316 INFO  L85        PathProgramCache]: Analyzing trace with hash -137271166, now seen corresponding path program 2 times
[2022-02-20 05:39:01,317 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:39:01,317 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915956971]
[2022-02-20 05:39:01,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:39:01,317 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:39:01,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:39:01,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 477 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked.
[2022-02-20 05:39:01,356 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:39:01,356 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915956971]
[2022-02-20 05:39:01,356 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915956971] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:39:01,356 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:39:01,356 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:39:01,357 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379835361]
[2022-02-20 05:39:01,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:39:01,357 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:39:01,357 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:39:01,358 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:39:01,358 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:39:01,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:01,358 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:39:01,358 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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)
[2022-02-20 05:39:01,358 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:01,358 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,358 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,359 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,359 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:01,359 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:02,826 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 578 transitions and produced 549 states.
[2022-02-20 05:39:02,826 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:02,826 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,827 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,827 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,827 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,827 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,828 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-20 05:39:02,828 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:39:02,829 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:39:02,829 INFO  L85        PathProgramCache]: Analyzing trace with hash -77318051, now seen corresponding path program 1 times
[2022-02-20 05:39:02,829 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:39:02,829 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671123191]
[2022-02-20 05:39:02,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:39:02,829 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:39:02,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:39:02,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 387 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked.
[2022-02-20 05:39:02,888 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:39:02,888 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671123191]
[2022-02-20 05:39:02,888 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671123191] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:39:02,889 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:39:02,889 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:39:02,889 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412803631]
[2022-02-20 05:39:02,889 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:39:02,890 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:39:02,890 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:39:02,891 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:39:02,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:39:02,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:02,891 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:39:02,891 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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)
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:02,892 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:03,763 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 440 transitions and produced 430 states.
[2022-02-20 05:39:03,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:03,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,765 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-20 05:39:03,765 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] ===
[2022-02-20 05:39:03,765 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 05:39:03,766 INFO  L85        PathProgramCache]: Analyzing trace with hash -1785185426, now seen corresponding path program 1 times
[2022-02-20 05:39:03,766 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 05:39:03,766 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321920536]
[2022-02-20 05:39:03,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 05:39:03,766 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 05:39:03,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 05:39:03,802 INFO  L134       CoverageAnalysis]: Checked inductivity of 313 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked.
[2022-02-20 05:39:03,802 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 05:39:03,802 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321920536]
[2022-02-20 05:39:03,802 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321920536] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 05:39:03,802 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 05:39:03,802 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 05:39:03,803 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088392178]
[2022-02-20 05:39:03,803 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 05:39:03,803 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 05:39:03,803 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 05:39:03,803 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 05:39:03,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 05:39:03,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:03,804 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 05:39:03,804 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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)
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 05:39:03,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.