/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c


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


This is Ultimate 0.2.1-dev-8c2bbc9
[2021-10-08 16:35:18,643 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-08 16:35:18,648 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-08 16:35:18,714 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-08 16:35:18,715 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-08 16:35:18,722 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-08 16:35:18,725 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2021-10-08 16:35:18,758 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
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[2021-10-08 16:35:18,763 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-08 16:35:18,769 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-08 16:35:18,770 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-08 16:35:18,772 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-08 16:35:18,782 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-08 16:35:18,787 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-08 16:35:18,789 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-08 16:35:18,791 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-08 16:35:18,792 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-08 16:35:18,793 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-08 16:35:18,799 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-10-08 16:35:18,800 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-08 16:35:18,804 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2021-10-08 16:35:18,808 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-08 16:35:18,808 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-08 16:35:18,809 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-08 16:35:18,811 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-08 16:35:18,812 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-08 16:35:18,812 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-08 16:35:18,814 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2021-10-08 16:35:18,815 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-10-08 16:35:18,817 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-08 16:35:18,824 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2021-10-08 16:35:18,874 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-08 16:35:18,875 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-08 16:35:18,876 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-08 16:35:18,876 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-08 16:35:18,880 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-08 16:35:18,880 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-08 16:35:18,880 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-08 16:35:18,881 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-08 16:35:18,881 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-08 16:35:18,881 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-10-08 16:35:18,882 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-08 16:35:18,882 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-08 16:35:18,883 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-08 16:35:18,883 INFO  L138        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2021-10-08 16:35:18,883 INFO  L138        SettingsManager]:  * Bitprecise bitfields=true
[2021-10-08 16:35:18,883 INFO  L138        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2021-10-08 16:35:18,884 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-08 16:35:18,884 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2021-10-08 16:35:18,884 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2021-10-08 16:35:18,884 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2021-10-08 16:35:18,884 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-08 16:35:18,884 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-08 16:35:18,885 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-08 16:35:18,885 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-08 16:35:18,885 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-08 16:35:18,885 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-08 16:35:18,886 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-08 16:35:18,886 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-08 16:35:18,886 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2021-10-08 16:35:18,886 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-10-08 16:35:18,886 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-08 16:35:18,886 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-10-08 16:35:18,887 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-10-08 16:35:19,295 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-08 16:35:19,344 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-08 16:35:19,348 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-08 16:35:19,349 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-08 16:35:19,350 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-08 16:35:19,351 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c
[2021-10-08 16:35:19,445 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c01210ba3/dc091a336cf34b3681d73dcb07c36b85/FLAG71bd29517
[2021-10-08 16:35:20,191 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-08 16:35:20,192 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c
[2021-10-08 16:35:20,206 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c01210ba3/dc091a336cf34b3681d73dcb07c36b85/FLAG71bd29517
[2021-10-08 16:35:20,523 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c01210ba3/dc091a336cf34b3681d73dcb07c36b85
[2021-10-08 16:35:20,529 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-08 16:35:20,539 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-10-08 16:35:20,542 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-08 16:35:20,542 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-08 16:35:20,547 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-08 16:35:20,548 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:35:20" (1/1) ...
[2021-10-08 16:35:20,550 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfd4bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:20, skipping insertion in model container
[2021-10-08 16:35:20,550 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 04:35:20" (1/1) ...
[2021-10-08 16:35:20,559 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-08 16:35:20,600 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-08 16:35:20,800 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2777,2790]
[2021-10-08 16:35:20,831 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-08 16:35:20,868 INFO  L200         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2021-10-08 16:35:20,880 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-08 16:35:20,954 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2777,2790]
[2021-10-08 16:35:20,974 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-08 16:35:20,995 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-08 16:35:21,067 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2777,2790]
[2021-10-08 16:35:21,079 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-08 16:35:21,117 INFO  L208         MainTranslator]: Completed translation
[2021-10-08 16:35:21,118 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21 WrapperNode
[2021-10-08 16:35:21,118 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-08 16:35:21,120 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-08 16:35:21,121 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-08 16:35:21,121 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-08 16:35:21,131 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,174 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,243 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-08 16:35:21,249 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-08 16:35:21,249 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-08 16:35:21,250 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-08 16:35:21,262 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,263 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,287 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,290 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,326 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,338 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,342 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,355 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-08 16:35:21,357 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-08 16:35:21,357 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-08 16:35:21,357 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-08 16:35:21,359 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (1/1) ...
[2021-10-08 16:35:21,370 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-08 16:35:21,384 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
[2021-10-08 16:35:21,412 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-08 16:35:21,420 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-08 16:35:21,492 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-10-08 16:35:21,492 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-08 16:35:21,493 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-10-08 16:35:21,493 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2021-10-08 16:35:21,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2021-10-08 16:35:21,494 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2021-10-08 16:35:21,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2021-10-08 16:35:21,496 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2021-10-08 16:35:21,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2021-10-08 16:35:21,497 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-10-08 16:35:21,497 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-08 16:35:21,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-08 16:35:21,497 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-10-08 16:35:21,498 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-10-08 16:35:21,500 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-10-08 16:35:22,813 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-08 16:35:22,813 INFO  L299             CfgBuilder]: Removed 50 assume(true) statements.
[2021-10-08 16:35:22,819 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:35:22 BoogieIcfgContainer
[2021-10-08 16:35:22,820 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-08 16:35:22,822 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-08 16:35:22,822 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-08 16:35:22,826 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-08 16:35:22,827 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 04:35:20" (1/3) ...
[2021-10-08 16:35:22,828 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1600b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:35:22, skipping insertion in model container
[2021-10-08 16:35:22,828 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 04:35:21" (2/3) ...
[2021-10-08 16:35:22,829 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1600b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:35:22, skipping insertion in model container
[2021-10-08 16:35:22,829 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:35:22" (3/3) ...
[2021-10-08 16:35:22,831 INFO  L111   eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c
[2021-10-08 16:35:22,840 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-08 16:35:22,840 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations.
[2021-10-08 16:35:22,841 INFO  L516   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-10-08 16:35:22,910 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,911 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,911 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,911 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,912 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,912 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,912 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,912 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,913 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,913 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,913 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,913 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,914 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,914 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,914 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,914 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,915 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,915 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,915 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,916 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,916 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,916 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,917 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,917 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,918 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,918 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,919 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,919 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,919 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,920 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,920 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,920 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,921 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,921 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,921 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,921 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,922 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,922 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,922 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,922 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,923 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,923 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,923 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,923 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,924 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,924 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,924 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,924 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,925 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,925 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,926 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,926 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,926 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,927 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,927 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,927 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,928 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,928 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,928 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,928 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,929 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,930 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,930 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,930 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,930 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,930 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,931 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,931 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,931 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,931 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,932 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,932 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,933 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,933 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,933 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,933 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,934 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,934 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,934 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,934 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,934 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,935 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,935 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,935 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,935 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,935 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,936 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,936 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,938 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,938 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,939 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,940 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,943 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,949 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,950 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,951 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,952 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,952 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,952 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,952 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,952 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,953 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,953 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,954 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,955 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,955 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,955 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,955 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,955 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,956 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,956 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,956 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,957 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,957 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,957 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,957 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,957 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,957 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,958 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,958 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,958 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,958 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,958 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,959 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,959 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,959 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,959 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,959 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,960 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,960 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,960 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,960 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,964 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,964 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,964 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,965 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,965 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,965 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,965 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,965 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,966 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,966 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,966 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,966 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,966 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,967 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,967 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,967 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,967 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,968 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,968 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,968 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,968 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,969 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,970 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,970 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,970 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,972 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,973 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,973 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,973 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,973 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,973 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,974 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,974 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,974 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,974 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,974 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,974 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,975 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,975 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,975 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,975 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,975 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,977 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,977 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,978 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,978 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,978 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,978 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,978 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,978 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,979 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,979 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,979 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,979 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,980 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,980 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,980 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,980 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,980 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,980 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,981 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,982 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,982 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,982 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,982 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,982 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,983 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,984 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,984 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,984 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,984 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,984 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,984 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,985 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,986 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,991 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,993 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,994 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,994 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,994 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,994 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,994 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,994 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,995 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,995 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,995 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,995 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,995 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,995 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,996 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,996 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,996 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,996 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,996 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,997 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,998 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,998 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,998 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,998 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,998 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,998 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,999 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,999 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:22,999 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,000 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,000 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,001 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,001 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,001 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,001 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,001 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,002 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,002 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,002 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,003 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,004 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,004 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,004 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,004 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,004 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,005 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,006 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,006 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,006 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,006 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,007 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,007 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,007 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,007 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,007 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,008 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,009 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,010 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,010 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,010 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,010 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,010 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,010 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,011 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,011 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,011 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,011 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,011 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,011 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,012 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,012 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,012 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,012 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,018 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,019 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,019 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,019 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,019 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,019 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,020 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,021 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,022 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,022 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,022 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,022 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,022 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,022 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,023 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,024 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,025 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,025 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,025 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,025 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,025 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,025 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,026 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,027 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,028 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,028 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,028 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,030 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,030 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,030 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,030 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,030 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,031 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,032 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,032 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,035 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,036 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,036 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,036 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,036 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,036 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,036 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,037 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,038 WARN  L313   ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,038 WARN  L313   ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,058 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,058 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,058 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,058 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,059 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,060 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,060 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,060 WARN  L313   ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,060 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,060 WARN  L313   ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,063 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,063 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,063 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,064 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,065 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,065 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,065 WARN  L313   ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-08 16:35:23,103 INFO  L148    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2021-10-08 16:35:23,241 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-08 16:35:23,249 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=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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
[2021-10-08 16:35:23,263 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 71 error locations.
[2021-10-08 16:35:23,290 INFO  L118   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2021-10-08 16:35:23,304 INFO  L133   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 332 places, 351 transitions, 726 flow
[2021-10-08 16:35:23,308 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 332 places, 351 transitions, 726 flow
[2021-10-08 16:35:23,310 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 332 places, 351 transitions, 726 flow
[2021-10-08 16:35:23,615 INFO  L129       PetriNetUnfolder]: 29/348 cut-off events.
[2021-10-08 16:35:23,615 INFO  L130       PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2021-10-08 16:35:23,629 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 361 conditions, 348 events. 29/348 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 772 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 257. Up to 3 conditions per place. 
[2021-10-08 16:35:23,657 INFO  L116        LiptonReduction]: Number of co-enabled transitions 21114
[2021-10-08 16:36:23,827 INFO  L131        LiptonReduction]: Checked pairs total: 32912
[2021-10-08 16:36:23,827 INFO  L133        LiptonReduction]: Total number of compositions: 410
[2021-10-08 16:36:23,845 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 83 transitions, 190 flow
[2021-10-08 16:36:24,390 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 10140 states, 7584 states have (on average 5.030458860759493) internal successors, (38151), 10139 states have internal predecessors, (38151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:24,431 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10140 states, 7584 states have (on average 5.030458860759493) internal successors, (38151), 10139 states have internal predecessors, (38151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:24,437 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2021-10-08 16:36:24,437 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:36:24,437 INFO  L512         BasicCegarLoop]: trace histogram [1, 1]
[2021-10-08 16:36:24,438 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:36:24,444 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:36:24,445 INFO  L82        PathProgramCache]: Analyzing trace with hash 45172, now seen corresponding path program 1 times
[2021-10-08 16:36:24,459 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:36:24,460 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704195487]
[2021-10-08 16:36:24,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:36:24,461 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:36:24,461 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:36:24,465 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:36:24,478 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-10-08 16:36:24,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:36:24,551 INFO  L263         TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-08 16:36:24,556 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:36:24,777 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:36:24,778 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 30
[2021-10-08 16:36:24,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:24,841 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:36:24,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:24,849 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:36:24,850 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704195487]
[2021-10-08 16:36:24,850 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [704195487] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:36:24,851 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:36:24,853 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1
[2021-10-08 16:36:24,858 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806280301]
[2021-10-08 16:36:24,863 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-08 16:36:24,864 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:36:24,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-08 16:36:24,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-08 16:36:24,919 INFO  L87              Difference]: Start difference. First operand  has 10140 states, 7584 states have (on average 5.030458860759493) internal successors, (38151), 10139 states have internal predecessors, (38151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:25,680 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:36:25,681 INFO  L93              Difference]: Finished difference Result 6760 states and 25219 transitions.
[2021-10-08 16:36:25,682 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-08 16:36:25,683 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2021-10-08 16:36:25,684 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:36:25,792 INFO  L225             Difference]: With dead ends: 6760
[2021-10-08 16:36:25,792 INFO  L226             Difference]: Without dead ends: 6760
[2021-10-08 16:36:25,793 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-08 16:36:25,839 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6760 states.
[2021-10-08 16:36:26,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 6760.
[2021-10-08 16:36:26,299 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6760 states, 5260 states have (on average 4.794486692015209) internal successors, (25219), 6759 states have internal predecessors, (25219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:26,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 25219 transitions.
[2021-10-08 16:36:26,362 INFO  L78                 Accepts]: Start accepts. Automaton has 6760 states and 25219 transitions. Word has length 2
[2021-10-08 16:36:26,363 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:36:26,363 INFO  L470      AbstractCegarLoop]: Abstraction has 6760 states and 25219 transitions.
[2021-10-08 16:36:26,364 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:26,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 6760 states and 25219 transitions.
[2021-10-08 16:36:26,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2021-10-08 16:36:26,365 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:36:26,365 INFO  L512         BasicCegarLoop]: trace histogram [1, 1]
[2021-10-08 16:36:26,384 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-10-08 16:36:26,584 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:36:26,585 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:36:26,586 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:36:26,586 INFO  L82        PathProgramCache]: Analyzing trace with hash 45174, now seen corresponding path program 1 times
[2021-10-08 16:36:26,590 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:36:26,590 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706832754]
[2021-10-08 16:36:26,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:36:26,591 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:36:26,591 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:36:26,593 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:36:26,748 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-10-08 16:36:26,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:36:26,800 INFO  L263         TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-08 16:36:26,801 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:36:26,846 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:36:26,848 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:36:27,265 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:36:27,266 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 74
[2021-10-08 16:36:27,382 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:27,383 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:36:27,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:27,503 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:36:27,504 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706832754]
[2021-10-08 16:36:27,504 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706832754] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:36:27,504 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:36:27,504 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2
[2021-10-08 16:36:27,505 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912242605]
[2021-10-08 16:36:27,506 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-08 16:36:27,506 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:36:27,507 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-08 16:36:27,508 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-08 16:36:27,508 INFO  L87              Difference]: Start difference. First operand 6760 states and 25219 transitions. Second operand  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:29,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:36:29,285 INFO  L93              Difference]: Finished difference Result 13519 states and 50442 transitions.
[2021-10-08 16:36:29,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-08 16:36:29,287 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2021-10-08 16:36:29,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:36:29,495 INFO  L225             Difference]: With dead ends: 13519
[2021-10-08 16:36:29,495 INFO  L226             Difference]: Without dead ends: 13519
[2021-10-08 16:36:29,496 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 86.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-08 16:36:29,589 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13519 states.
[2021-10-08 16:36:30,209 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13519 to 6766.
[2021-10-08 16:36:30,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6766 states, 5266 states have (on average 4.792062286365363) internal successors, (25235), 6765 states have internal predecessors, (25235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:30,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6766 states to 6766 states and 25235 transitions.
[2021-10-08 16:36:30,336 INFO  L78                 Accepts]: Start accepts. Automaton has 6766 states and 25235 transitions. Word has length 2
[2021-10-08 16:36:30,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:36:30,337 INFO  L470      AbstractCegarLoop]: Abstraction has 6766 states and 25235 transitions.
[2021-10-08 16:36:30,337 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:30,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 6766 states and 25235 transitions.
[2021-10-08 16:36:30,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2021-10-08 16:36:30,337 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:36:30,337 INFO  L512         BasicCegarLoop]: trace histogram [2, 1, 1]
[2021-10-08 16:36:30,352 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0
[2021-10-08 16:36:30,549 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:36:30,550 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:36:30,551 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:36:30,551 INFO  L82        PathProgramCache]: Analyzing trace with hash 43766582, now seen corresponding path program 1 times
[2021-10-08 16:36:30,552 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:36:30,553 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779527297]
[2021-10-08 16:36:30,553 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:36:30,553 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:36:30,553 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:36:30,555 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:36:30,590 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-10-08 16:36:30,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:36:30,634 INFO  L263         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-08 16:36:30,635 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:36:30,669 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:36:30,671 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:36:30,967 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:36:30,968 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 74
[2021-10-08 16:36:31,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:31,163 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:36:31,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:31,909 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:36:31,909 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779527297]
[2021-10-08 16:36:31,910 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779527297] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:36:31,911 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:36:31,911 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6
[2021-10-08 16:36:31,911 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891202245]
[2021-10-08 16:36:31,912 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:36:31,912 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:36:31,913 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:36:31,913 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:36:31,913 INFO  L87              Difference]: Start difference. First operand 6766 states and 25235 transitions. Second operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:44,862 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:36:44,862 INFO  L93              Difference]: Finished difference Result 40543 states and 151302 transitions.
[2021-10-08 16:36:44,864 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-10-08 16:36:44,864 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2021-10-08 16:36:44,864 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:36:45,562 INFO  L225             Difference]: With dead ends: 40543
[2021-10-08 16:36:45,562 INFO  L226             Difference]: Without dead ends: 40543
[2021-10-08 16:36:45,562 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1045.4ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:36:45,922 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40543 states.
[2021-10-08 16:36:46,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40543 to 6778.
[2021-10-08 16:36:46,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6778 states, 5278 states have (on average 4.787230011367942) internal successors, (25267), 6777 states have internal predecessors, (25267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:46,931 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 25267 transitions.
[2021-10-08 16:36:46,932 INFO  L78                 Accepts]: Start accepts. Automaton has 6778 states and 25267 transitions. Word has length 4
[2021-10-08 16:36:46,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:36:46,932 INFO  L470      AbstractCegarLoop]: Abstraction has 6778 states and 25267 transitions.
[2021-10-08 16:36:46,932 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:46,933 INFO  L276                IsEmpty]: Start isEmpty. Operand 6778 states and 25267 transitions.
[2021-10-08 16:36:46,933 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2021-10-08 16:36:46,933 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:36:46,933 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2021-10-08 16:36:46,954 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-10-08 16:36:47,148 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:36:47,148 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:36:47,150 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:36:47,150 INFO  L82        PathProgramCache]: Analyzing trace with hash 43801425, now seen corresponding path program 1 times
[2021-10-08 16:36:47,151 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:36:47,151 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127648944]
[2021-10-08 16:36:47,151 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:36:47,151 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:36:47,152 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:36:47,153 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:36:47,176 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-10-08 16:36:47,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:36:47,259 INFO  L263         TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:36:47,260 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:36:47,359 INFO  L354             Elim1Store]: treesize reduction 92, result has 21.4 percent of original size
[2021-10-08 16:36:47,360 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 59
[2021-10-08 16:36:47,715 INFO  L354             Elim1Store]: treesize reduction 92, result has 26.4 percent of original size
[2021-10-08 16:36:47,716 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 86
[2021-10-08 16:36:48,299 INFO  L354             Elim1Store]: treesize reduction 135, result has 23.3 percent of original size
[2021-10-08 16:36:48,300 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 127
[2021-10-08 16:36:49,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:49,676 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:36:49,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:36:49,752 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:36:49,752 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127648944]
[2021-10-08 16:36:49,752 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [127648944] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:36:49,752 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:36:49,752 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4
[2021-10-08 16:36:49,753 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782577958]
[2021-10-08 16:36:49,753 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-08 16:36:49,753 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:36:49,753 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-08 16:36:49,754 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-08 16:36:49,754 INFO  L87              Difference]: Start difference. First operand 6778 states and 25267 transitions. Second operand  has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:50,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:36:50,448 INFO  L93              Difference]: Finished difference Result 5405 states and 19576 transitions.
[2021-10-08 16:36:50,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-08 16:36:50,450 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2021-10-08 16:36:50,450 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:36:50,477 INFO  L225             Difference]: With dead ends: 5405
[2021-10-08 16:36:50,478 INFO  L226             Difference]: Without dead ends: 5405
[2021-10-08 16:36:50,478 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1508.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-08 16:36:50,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5405 states.
[2021-10-08 16:36:50,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5405.
[2021-10-08 16:36:50,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5405 states, 4311 states have (on average 4.540941776849919) internal successors, (19576), 5404 states have internal predecessors, (19576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:50,676 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 19576 transitions.
[2021-10-08 16:36:50,676 INFO  L78                 Accepts]: Start accepts. Automaton has 5405 states and 19576 transitions. Word has length 4
[2021-10-08 16:36:50,676 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:36:50,676 INFO  L470      AbstractCegarLoop]: Abstraction has 5405 states and 19576 transitions.
[2021-10-08 16:36:50,677 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:36:50,677 INFO  L276                IsEmpty]: Start isEmpty. Operand 5405 states and 19576 transitions.
[2021-10-08 16:36:50,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2021-10-08 16:36:50,677 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:36:50,677 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2021-10-08 16:36:50,693 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-10-08 16:36:50,890 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:36:50,891 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:36:50,893 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:36:50,893 INFO  L82        PathProgramCache]: Analyzing trace with hash 43801426, now seen corresponding path program 1 times
[2021-10-08 16:36:50,895 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:36:50,895 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625863473]
[2021-10-08 16:36:50,896 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:36:50,896 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:36:50,896 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:36:50,897 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:36:50,898 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-10-08 16:36:51,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:36:51,004 INFO  L263         TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-08 16:36:51,005 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:36:51,355 INFO  L354             Elim1Store]: treesize reduction 233, result has 21.3 percent of original size
[2021-10-08 16:36:51,355 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 100
[2021-10-08 16:36:51,367 INFO  L354             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2021-10-08 16:36:51,368 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 99
[2021-10-08 16:36:53,175 INFO  L354             Elim1Store]: treesize reduction 84, result has 36.8 percent of original size
[2021-10-08 16:36:53,176 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 96
[2021-10-08 16:37:04,088 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:37:04,089 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625863473]
[2021-10-08 16:37:04,090 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported
[2021-10-08 16:37:04,090 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779974799]
[2021-10-08 16:37:04,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:37:04,090 INFO  L170          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2021-10-08 16:37:04,090 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4
[2021-10-08 16:37:04,100 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2021-10-08 16:37:04,133 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2021-10-08 16:37:04,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:37:04,365 INFO  L263         TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-08 16:37:04,366 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:37:04,672 INFO  L354             Elim1Store]: treesize reduction 233, result has 21.3 percent of original size
[2021-10-08 16:37:04,672 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 100
[2021-10-08 16:37:04,685 INFO  L354             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2021-10-08 16:37:04,686 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 99
[2021-10-08 16:37:06,389 INFO  L354             Elim1Store]: treesize reduction 84, result has 36.8 percent of original size
[2021-10-08 16:37:06,390 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 96
[2021-10-08 16:37:18,175 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported
[2021-10-08 16:37:18,175 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822909480]
[2021-10-08 16:37:18,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:37:18,176 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-08 16:37:18,176 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
[2021-10-08 16:37:18,177 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-08 16:37:18,179 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2021-10-08 16:37:18,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:37:18,300 INFO  L263         TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-10-08 16:37:18,301 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:37:18,553 INFO  L354             Elim1Store]: treesize reduction 241, result has 18.6 percent of original size
[2021-10-08 16:37:18,554 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 84 treesize of output 122
[2021-10-08 16:37:18,635 INFO  L354             Elim1Store]: treesize reduction 108, result has 18.8 percent of original size
[2021-10-08 16:37:18,636 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 128 treesize of output 136
[2021-10-08 16:37:19,251 INFO  L354             Elim1Store]: treesize reduction 112, result has 15.8 percent of original size
[2021-10-08 16:37:19,252 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 115
[2021-10-08 16:37:19,354 INFO  L354             Elim1Store]: treesize reduction 108, result has 31.2 percent of original size
[2021-10-08 16:37:19,355 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 103 treesize of output 140
[2021-10-08 16:37:20,352 INFO  L354             Elim1Store]: treesize reduction 160, result has 14.0 percent of original size
[2021-10-08 16:37:20,352 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 166 treesize of output 180
[2021-10-08 16:37:20,437 INFO  L354             Elim1Store]: treesize reduction 100, result has 17.4 percent of original size
[2021-10-08 16:37:20,438 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 165 treesize of output 173
[2021-10-08 16:37:25,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:37:25,814 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:37:30,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:37:30,379 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [822909480] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:37:30,379 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:37:30,379 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6
[2021-10-08 16:37:30,380 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256919196]
[2021-10-08 16:37:30,383 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:37:30,383 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:37:30,384 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:37:30,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=71, Unknown=8, NotChecked=0, Total=110
[2021-10-08 16:37:30,385 INFO  L87              Difference]: Start difference. First operand 5405 states and 19576 transitions. Second operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:37:42,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:37:42,959 INFO  L93              Difference]: Finished difference Result 4032 states and 13885 transitions.
[2021-10-08 16:37:42,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-10-08 16:37:42,961 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2021-10-08 16:37:42,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:37:42,982 INFO  L225             Difference]: With dead ends: 4032
[2021-10-08 16:37:42,982 INFO  L226             Difference]: Without dead ends: 4032
[2021-10-08 16:37:42,983 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 19807.5ms TimeCoverageRelationStatistics Valid=39, Invalid=85, Unknown=8, NotChecked=0, Total=132
[2021-10-08 16:37:42,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4032 states.
[2021-10-08 16:37:43,095 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4032.
[2021-10-08 16:37:43,105 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4032 states, 3344 states have (on average 4.152212918660287) internal successors, (13885), 4031 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:37:43,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 13885 transitions.
[2021-10-08 16:37:43,131 INFO  L78                 Accepts]: Start accepts. Automaton has 4032 states and 13885 transitions. Word has length 4
[2021-10-08 16:37:43,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:37:43,131 INFO  L470      AbstractCegarLoop]: Abstraction has 4032 states and 13885 transitions.
[2021-10-08 16:37:43,131 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:37:43,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 4032 states and 13885 transitions.
[2021-10-08 16:37:43,132 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-10-08 16:37:43,132 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:37:43,133 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-10-08 16:37:43,142 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0
[2021-10-08 16:37:43,362 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2021-10-08 16:37:43,548 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-10-08 16:37:43,737 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:37:43,738 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:37:43,738 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:37:43,739 INFO  L82        PathProgramCache]: Analyzing trace with hash -856472924, now seen corresponding path program 1 times
[2021-10-08 16:37:43,739 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:37:43,740 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917839903]
[2021-10-08 16:37:43,740 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:37:43,740 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:37:43,740 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:37:43,741 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:37:43,744 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2021-10-08 16:37:43,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:37:43,896 INFO  L263         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:37:43,897 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:37:43,976 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:37:43,977 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 48
[2021-10-08 16:37:44,111 INFO  L354             Elim1Store]: treesize reduction 30, result has 36.2 percent of original size
[2021-10-08 16:37:44,111 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 43
[2021-10-08 16:37:44,217 INFO  L354             Elim1Store]: treesize reduction 30, result has 36.2 percent of original size
[2021-10-08 16:37:44,217 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 48
[2021-10-08 16:37:44,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:37:44,469 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:37:44,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:37:44,583 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:37:44,583 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917839903]
[2021-10-08 16:37:44,583 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [917839903] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:37:44,583 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:37:44,584 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4
[2021-10-08 16:37:44,584 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421653471]
[2021-10-08 16:37:44,584 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-08 16:37:44,584 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:37:44,585 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-08 16:37:44,585 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-08 16:37:44,585 INFO  L87              Difference]: Start difference. First operand 4032 states and 13885 transitions. Second operand  has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:37:45,113 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:37:45,114 INFO  L93              Difference]: Finished difference Result 3920 states and 13555 transitions.
[2021-10-08 16:37:45,115 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-08 16:37:45,115 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2021-10-08 16:37:45,115 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:37:45,134 INFO  L225             Difference]: With dead ends: 3920
[2021-10-08 16:37:45,134 INFO  L226             Difference]: Without dead ends: 3920
[2021-10-08 16:37:45,135 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-08 16:37:45,144 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3920 states.
[2021-10-08 16:37:45,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920.
[2021-10-08 16:37:45,258 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3920 states, 3286 states have (on average 4.12507608034084) internal successors, (13555), 3919 states have internal predecessors, (13555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:37:45,278 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 13555 transitions.
[2021-10-08 16:37:45,279 INFO  L78                 Accepts]: Start accepts. Automaton has 3920 states and 13555 transitions. Word has length 6
[2021-10-08 16:37:45,279 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:37:45,279 INFO  L470      AbstractCegarLoop]: Abstraction has 3920 states and 13555 transitions.
[2021-10-08 16:37:45,279 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:37:45,279 INFO  L276                IsEmpty]: Start isEmpty. Operand 3920 states and 13555 transitions.
[2021-10-08 16:37:45,280 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-10-08 16:37:45,280 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:37:45,280 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-10-08 16:37:45,299 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2021-10-08 16:37:45,493 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:37:45,494 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:37:45,495 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:37:45,495 INFO  L82        PathProgramCache]: Analyzing trace with hash -856472923, now seen corresponding path program 1 times
[2021-10-08 16:37:45,498 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:37:45,498 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222213118]
[2021-10-08 16:37:45,498 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:37:45,498 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:37:45,499 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:37:45,500 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:37:45,537 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2021-10-08 16:37:45,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:37:45,643 INFO  L263         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-08 16:37:45,644 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:37:45,942 INFO  L354             Elim1Store]: treesize reduction 233, result has 21.3 percent of original size
[2021-10-08 16:37:45,943 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 88
[2021-10-08 16:37:45,950 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 88
[2021-10-08 16:37:47,467 INFO  L354             Elim1Store]: treesize reduction 84, result has 36.8 percent of original size
[2021-10-08 16:37:47,468 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 92
[2021-10-08 16:37:58,458 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:37:58,459 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222213118]
[2021-10-08 16:37:58,459 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported
[2021-10-08 16:37:58,459 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [444535951]
[2021-10-08 16:37:58,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:37:58,459 INFO  L170          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2021-10-08 16:37:58,459 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4
[2021-10-08 16:37:58,460 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2021-10-08 16:37:58,461 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process
[2021-10-08 16:37:58,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:37:58,743 INFO  L263         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-08 16:37:58,744 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:37:59,086 INFO  L354             Elim1Store]: treesize reduction 233, result has 21.3 percent of original size
[2021-10-08 16:37:59,087 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 88
[2021-10-08 16:37:59,095 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 88
[2021-10-08 16:38:00,672 INFO  L354             Elim1Store]: treesize reduction 84, result has 36.8 percent of original size
[2021-10-08 16:38:00,672 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 92
[2021-10-08 16:38:11,349 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported
[2021-10-08 16:38:11,349 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491642883]
[2021-10-08 16:38:11,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:38:11,350 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-08 16:38:11,350 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
[2021-10-08 16:38:11,353 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-08 16:38:11,354 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2021-10-08 16:38:11,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:38:11,519 INFO  L263         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-08 16:38:11,520 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:38:11,793 INFO  L354             Elim1Store]: treesize reduction 241, result has 18.6 percent of original size
[2021-10-08 16:38:11,793 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 110
[2021-10-08 16:38:11,878 INFO  L354             Elim1Store]: treesize reduction 92, result has 21.4 percent of original size
[2021-10-08 16:38:11,878 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 115 treesize of output 125
[2021-10-08 16:38:12,426 INFO  L354             Elim1Store]: treesize reduction 112, result has 15.8 percent of original size
[2021-10-08 16:38:12,426 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 113
[2021-10-08 16:38:12,549 INFO  L354             Elim1Store]: treesize reduction 108, result has 31.2 percent of original size
[2021-10-08 16:38:12,550 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 101 treesize of output 138
[2021-10-08 16:38:13,331 INFO  L354             Elim1Store]: treesize reduction 160, result has 14.0 percent of original size
[2021-10-08 16:38:13,332 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 152 treesize of output 166
[2021-10-08 16:38:13,467 INFO  L354             Elim1Store]: treesize reduction 100, result has 17.4 percent of original size
[2021-10-08 16:38:13,467 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 151 treesize of output 159
[2021-10-08 16:38:24,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:38:24,303 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:38:26,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:38:26,758 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [491642883] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:38:26,758 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:38:26,758 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6
[2021-10-08 16:38:26,759 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871710985]
[2021-10-08 16:38:26,759 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:38:26,759 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:38:26,762 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:38:26,762 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=68, Unknown=9, NotChecked=0, Total=110
[2021-10-08 16:38:26,763 INFO  L87              Difference]: Start difference. First operand 3920 states and 13555 transitions. Second operand  has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:38:43,544 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:38:43,544 INFO  L93              Difference]: Finished difference Result 3808 states and 13225 transitions.
[2021-10-08 16:38:43,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-08 16:38:43,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2021-10-08 16:38:43,546 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:38:43,565 INFO  L225             Difference]: With dead ends: 3808
[2021-10-08 16:38:43,565 INFO  L226             Difference]: Without dead ends: 3808
[2021-10-08 16:38:43,565 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 21340.4ms TimeCoverageRelationStatistics Valid=41, Invalid=82, Unknown=9, NotChecked=0, Total=132
[2021-10-08 16:38:43,577 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3808 states.
[2021-10-08 16:38:43,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3808.
[2021-10-08 16:38:43,683 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3808 states, 3228 states have (on average 4.096964064436183) internal successors, (13225), 3807 states have internal predecessors, (13225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:38:43,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 13225 transitions.
[2021-10-08 16:38:43,703 INFO  L78                 Accepts]: Start accepts. Automaton has 3808 states and 13225 transitions. Word has length 6
[2021-10-08 16:38:43,703 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:38:43,704 INFO  L470      AbstractCegarLoop]: Abstraction has 3808 states and 13225 transitions.
[2021-10-08 16:38:43,704 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:38:43,704 INFO  L276                IsEmpty]: Start isEmpty. Operand 3808 states and 13225 transitions.
[2021-10-08 16:38:43,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-10-08 16:38:43,705 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:38:43,705 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:38:43,718 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2021-10-08 16:38:43,922 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0
[2021-10-08 16:38:44,144 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2021-10-08 16:38:44,318 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-08 16:38:44,319 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:38:44,319 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:38:44,320 INFO  L82        PathProgramCache]: Analyzing trace with hash -780863431, now seen corresponding path program 1 times
[2021-10-08 16:38:44,320 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:38:44,320 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130507029]
[2021-10-08 16:38:44,320 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:38:44,321 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:38:44,321 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:38:44,322 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:38:44,324 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2021-10-08 16:38:44,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:38:44,463 INFO  L263         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:38:44,464 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:38:44,544 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:38:44,544 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:38:44,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:38:44,605 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:38:44,606 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130507029]
[2021-10-08 16:38:44,606 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130507029] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:38:44,606 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:38:44,606 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6
[2021-10-08 16:38:44,606 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556885378]
[2021-10-08 16:38:44,606 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:38:44,607 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:38:44,607 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:38:44,608 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:38:44,608 INFO  L87              Difference]: Start difference. First operand 3808 states and 13225 transitions. Second operand  has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:38:45,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:38:45,191 INFO  L93              Difference]: Finished difference Result 4813 states and 16290 transitions.
[2021-10-08 16:38:45,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:38:45,193 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2021-10-08 16:38:45,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:38:45,219 INFO  L225             Difference]: With dead ends: 4813
[2021-10-08 16:38:45,219 INFO  L226             Difference]: Without dead ends: 4813
[2021-10-08 16:38:45,219 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 65.4ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:38:45,232 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4813 states.
[2021-10-08 16:38:45,355 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 4331.
[2021-10-08 16:38:45,366 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4331 states, 3751 states have (on average 4.0010663822980534) internal successors, (15008), 4330 states have internal predecessors, (15008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:38:45,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 15008 transitions.
[2021-10-08 16:38:45,388 INFO  L78                 Accepts]: Start accepts. Automaton has 4331 states and 15008 transitions. Word has length 7
[2021-10-08 16:38:45,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:38:45,388 INFO  L470      AbstractCegarLoop]: Abstraction has 4331 states and 15008 transitions.
[2021-10-08 16:38:45,388 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:38:45,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 4331 states and 15008 transitions.
[2021-10-08 16:38:45,390 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-10-08 16:38:45,391 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:38:45,391 INFO  L512         BasicCegarLoop]: trace histogram [6, 1, 1]
[2021-10-08 16:38:45,407 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0
[2021-10-08 16:38:45,605 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:38:45,605 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:38:45,606 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:38:45,606 INFO  L82        PathProgramCache]: Analyzing trace with hash -238745418, now seen corresponding path program 2 times
[2021-10-08 16:38:45,606 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:38:45,607 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488305128]
[2021-10-08 16:38:45,607 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-08 16:38:45,607 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:38:45,607 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:38:45,608 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:38:45,615 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2021-10-08 16:38:45,788 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-08 16:38:45,789 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-08 16:38:45,794 INFO  L263         TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 15 conjunts are in the unsatisfiable core
[2021-10-08 16:38:45,795 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:38:45,816 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:38:45,818 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:38:46,099 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:38:46,099 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 74
[2021-10-08 16:38:46,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:38:46,483 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:38:48,375 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:38:48,375 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:38:48,375 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488305128]
[2021-10-08 16:38:48,376 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488305128] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:38:48,376 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:38:48,376 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14
[2021-10-08 16:38:48,376 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518220660]
[2021-10-08 16:38:48,376 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2021-10-08 16:38:48,376 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:38:48,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2021-10-08 16:38:48,377 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240
[2021-10-08 16:38:48,378 INFO  L87              Difference]: Start difference. First operand 4331 states and 15008 transitions. Second operand  has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:39:31,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:39:31,257 INFO  L93              Difference]: Finished difference Result 42977 states and 149432 transitions.
[2021-10-08 16:39:31,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2021-10-08 16:39:31,259 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2021-10-08 16:39:31,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:39:31,451 INFO  L225             Difference]: With dead ends: 42977
[2021-10-08 16:39:31,451 INFO  L226             Difference]: Without dead ends: 42977
[2021-10-08 16:39:31,451 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 7295.3ms TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506
[2021-10-08 16:39:31,511 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42977 states.
[2021-10-08 16:39:32,001 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42977 to 4349.
[2021-10-08 16:39:32,012 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4349 states, 3769 states have (on average 3.9915096842663838) internal successors, (15044), 4348 states have internal predecessors, (15044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:39:32,038 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 15044 transitions.
[2021-10-08 16:39:32,039 INFO  L78                 Accepts]: Start accepts. Automaton has 4349 states and 15044 transitions. Word has length 8
[2021-10-08 16:39:32,039 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:39:32,039 INFO  L470      AbstractCegarLoop]: Abstraction has 4349 states and 15044 transitions.
[2021-10-08 16:39:32,039 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:39:32,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 4349 states and 15044 transitions.
[2021-10-08 16:39:32,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-10-08 16:39:32,043 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:39:32,043 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:39:32,074 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2021-10-08 16:39:32,257 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:39:32,257 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:39:32,258 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:39:32,258 INFO  L82        PathProgramCache]: Analyzing trace with hash 789208291, now seen corresponding path program 1 times
[2021-10-08 16:39:32,258 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:39:32,258 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861992748]
[2021-10-08 16:39:32,258 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:39:32,259 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:39:32,259 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:39:32,260 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:39:32,329 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2021-10-08 16:39:32,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:39:32,480 INFO  L263         TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:39:32,481 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:39:32,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:39:32,563 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:39:32,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:39:32,625 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:39:32,625 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861992748]
[2021-10-08 16:39:32,625 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861992748] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:39:32,625 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:39:32,625 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-08 16:39:32,625 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479211450]
[2021-10-08 16:39:32,626 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:39:32,626 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:39:32,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:39:32,627 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:39:32,627 INFO  L87              Difference]: Start difference. First operand 4349 states and 15044 transitions. Second operand  has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:39:33,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:39:33,252 INFO  L93              Difference]: Finished difference Result 5868 states and 19874 transitions.
[2021-10-08 16:39:33,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:39:33,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2021-10-08 16:39:33,253 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:39:33,277 INFO  L225             Difference]: With dead ends: 5868
[2021-10-08 16:39:33,277 INFO  L226             Difference]: Without dead ends: 5868
[2021-10-08 16:39:33,278 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:39:33,288 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5868 states.
[2021-10-08 16:39:33,390 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5868 to 4349.
[2021-10-08 16:39:33,397 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4349 states, 3769 states have (on average 3.9915096842663838) internal successors, (15044), 4348 states have internal predecessors, (15044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:39:33,419 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 15044 transitions.
[2021-10-08 16:39:33,419 INFO  L78                 Accepts]: Start accepts. Automaton has 4349 states and 15044 transitions. Word has length 8
[2021-10-08 16:39:33,419 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:39:33,419 INFO  L470      AbstractCegarLoop]: Abstraction has 4349 states and 15044 transitions.
[2021-10-08 16:39:33,420 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:39:33,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 4349 states and 15044 transitions.
[2021-10-08 16:39:33,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-10-08 16:39:33,421 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:39:33,421 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:39:33,439 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2021-10-08 16:39:33,634 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:39:33,634 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:39:33,635 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:39:33,635 INFO  L82        PathProgramCache]: Analyzing trace with hash 1563274517, now seen corresponding path program 1 times
[2021-10-08 16:39:33,636 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:39:33,636 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267577590]
[2021-10-08 16:39:33,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:39:33,636 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:39:33,637 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:39:33,638 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:39:33,638 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2021-10-08 16:39:33,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:39:33,843 INFO  L263         TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:39:33,844 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:39:34,085 INFO  L354             Elim1Store]: treesize reduction 241, result has 18.6 percent of original size
[2021-10-08 16:39:34,085 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 80
[2021-10-08 16:39:34,095 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81
[2021-10-08 16:39:34,482 INFO  L354             Elim1Store]: treesize reduction 100, result has 24.8 percent of original size
[2021-10-08 16:39:34,483 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 69
[2021-10-08 16:39:37,173 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:39:37,174 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267577590]
[2021-10-08 16:39:37,174 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported
[2021-10-08 16:39:37,174 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [852457736]
[2021-10-08 16:39:37,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:39:37,174 INFO  L170          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2021-10-08 16:39:37,175 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4
[2021-10-08 16:39:37,176 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2021-10-08 16:39:37,192 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process
[2021-10-08 16:39:37,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:39:37,587 INFO  L263         TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:39:37,588 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:39:37,903 INFO  L354             Elim1Store]: treesize reduction 233, result has 21.3 percent of original size
[2021-10-08 16:39:37,903 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 73
[2021-10-08 16:39:38,081 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported
[2021-10-08 16:39:38,082 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006004707]
[2021-10-08 16:39:38,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:39:38,082 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-08 16:39:38,082 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
[2021-10-08 16:39:38,086 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-08 16:39:38,105 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2021-10-08 16:39:38,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:39:38,319 INFO  L263         TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-08 16:39:38,320 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:39:38,578 INFO  L354             Elim1Store]: treesize reduction 241, result has 18.6 percent of original size
[2021-10-08 16:39:38,578 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 95
[2021-10-08 16:39:38,656 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:39:38,656 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 110
[2021-10-08 16:39:39,069 INFO  L354             Elim1Store]: treesize reduction 112, result has 15.8 percent of original size
[2021-10-08 16:39:39,070 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 100
[2021-10-08 16:39:39,189 INFO  L354             Elim1Store]: treesize reduction 108, result has 31.2 percent of original size
[2021-10-08 16:39:39,190 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 88 treesize of output 125
[2021-10-08 16:39:39,886 INFO  L354             Elim1Store]: treesize reduction 160, result has 14.0 percent of original size
[2021-10-08 16:39:39,886 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 153 treesize of output 167
[2021-10-08 16:39:39,972 INFO  L354             Elim1Store]: treesize reduction 100, result has 17.4 percent of original size
[2021-10-08 16:39:39,972 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 152 treesize of output 160
[2021-10-08 16:39:53,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:39:53,097 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:39:57,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:39:57,591 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006004707] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:39:57,591 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:39:57,591 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6
[2021-10-08 16:39:57,592 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324488501]
[2021-10-08 16:39:57,592 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:39:57,592 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:39:57,593 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:39:57,593 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=55, Unknown=6, NotChecked=0, Total=90
[2021-10-08 16:39:57,593 INFO  L87              Difference]: Start difference. First operand 4349 states and 15044 transitions. Second operand  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:14,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:40:14,395 INFO  L93              Difference]: Finished difference Result 3887 states and 13612 transitions.
[2021-10-08 16:40:14,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-08 16:40:14,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2021-10-08 16:40:14,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:40:14,409 INFO  L225             Difference]: With dead ends: 3887
[2021-10-08 16:40:14,409 INFO  L226             Difference]: Without dead ends: 3887
[2021-10-08 16:40:14,409 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 17138.9ms TimeCoverageRelationStatistics Valid=37, Invalid=67, Unknown=6, NotChecked=0, Total=110
[2021-10-08 16:40:14,417 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3887 states.
[2021-10-08 16:40:14,492 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3887 to 3887.
[2021-10-08 16:40:14,499 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3887 states, 3479 states have (on average 3.912618568554182) internal successors, (13612), 3886 states have internal predecessors, (13612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:14,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3887 states to 3887 states and 13612 transitions.
[2021-10-08 16:40:14,516 INFO  L78                 Accepts]: Start accepts. Automaton has 3887 states and 13612 transitions. Word has length 8
[2021-10-08 16:40:14,517 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:40:14,517 INFO  L470      AbstractCegarLoop]: Abstraction has 3887 states and 13612 transitions.
[2021-10-08 16:40:14,517 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:14,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 3887 states and 13612 transitions.
[2021-10-08 16:40:14,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:40:14,518 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:40:14,518 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:40:14,531 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2021-10-08 16:40:14,758 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2021-10-08 16:40:14,935 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0
[2021-10-08 16:40:15,131 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2021-10-08 16:40:15,131 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:40:15,132 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:40:15,132 INFO  L82        PathProgramCache]: Analyzing trace with hash 1783191630, now seen corresponding path program 1 times
[2021-10-08 16:40:15,133 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:40:15,133 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006755037]
[2021-10-08 16:40:15,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:40:15,134 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:40:15,134 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:40:15,134 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:40:15,135 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2021-10-08 16:40:15,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:40:15,424 INFO  L263         TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-08 16:40:15,425 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:40:15,431 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-08 16:40:15,461 INFO  L354             Elim1Store]: treesize reduction 12, result has 40.0 percent of original size
[2021-10-08 16:40:15,461 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20
[2021-10-08 16:40:15,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-08 16:40:15,491 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:40:15,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-08 16:40:15,533 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:40:15,533 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006755037]
[2021-10-08 16:40:15,533 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006755037] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:40:15,533 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:40:15,533 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-10-08 16:40:15,533 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378101649]
[2021-10-08 16:40:15,534 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-08 16:40:15,534 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:40:15,534 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-08 16:40:15,534 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-08 16:40:15,534 INFO  L87              Difference]: Start difference. First operand 3887 states and 13612 transitions. Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:15,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:40:15,969 INFO  L93              Difference]: Finished difference Result 3013 states and 10514 transitions.
[2021-10-08 16:40:15,970 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-08 16:40:16,010 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:40:16,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:40:16,021 INFO  L225             Difference]: With dead ends: 3013
[2021-10-08 16:40:16,021 INFO  L226             Difference]: Without dead ends: 3013
[2021-10-08 16:40:16,022 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-08 16:40:16,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3013 states.
[2021-10-08 16:40:16,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3013.
[2021-10-08 16:40:16,082 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3013 states, 2758 states have (on average 3.8121827411167515) internal successors, (10514), 3012 states have internal predecessors, (10514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:16,097 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 10514 transitions.
[2021-10-08 16:40:16,098 INFO  L78                 Accepts]: Start accepts. Automaton has 3013 states and 10514 transitions. Word has length 9
[2021-10-08 16:40:16,098 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:40:16,099 INFO  L470      AbstractCegarLoop]: Abstraction has 3013 states and 10514 transitions.
[2021-10-08 16:40:16,099 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:16,099 INFO  L276                IsEmpty]: Start isEmpty. Operand 3013 states and 10514 transitions.
[2021-10-08 16:40:16,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:40:16,100 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:40:16,100 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:40:16,119 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2021-10-08 16:40:16,317 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:40:16,318 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:40:16,320 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:40:16,321 INFO  L82        PathProgramCache]: Analyzing trace with hash 1783191631, now seen corresponding path program 1 times
[2021-10-08 16:40:16,321 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:40:16,321 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098226945]
[2021-10-08 16:40:16,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:40:16,321 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:40:16,321 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:40:16,322 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:40:16,325 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2021-10-08 16:40:16,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:40:16,630 INFO  L263         TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core
[2021-10-08 16:40:16,631 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:40:16,647 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-08 16:40:16,657 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2021-10-08 16:40:16,774 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:40:16,775 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43
[2021-10-08 16:40:16,795 INFO  L354             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2021-10-08 16:40:16,795 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 40
[2021-10-08 16:40:19,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:40:19,007 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:40:19,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:40:19,547 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:40:19,547 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098226945]
[2021-10-08 16:40:19,548 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098226945] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:40:19,548 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:40:19,548 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2021-10-08 16:40:19,548 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425561014]
[2021-10-08 16:40:19,548 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-08 16:40:19,548 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:40:19,549 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-08 16:40:19,549 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:40:19,549 INFO  L87              Difference]: Start difference. First operand 3013 states and 10514 transitions. Second operand  has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:54,355 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:40:54,355 INFO  L93              Difference]: Finished difference Result 48779 states and 171156 transitions.
[2021-10-08 16:40:54,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2021-10-08 16:40:54,357 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:40:54,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:40:54,829 INFO  L225             Difference]: With dead ends: 48779
[2021-10-08 16:40:54,829 INFO  L226             Difference]: Without dead ends: 48779
[2021-10-08 16:40:54,830 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 25947.6ms TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332
[2021-10-08 16:40:54,991 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48779 states.
[2021-10-08 16:40:55,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48779 to 3222.
[2021-10-08 16:40:55,478 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3222 states, 3003 states have (on average 3.936063936063936) internal successors, (11820), 3221 states have internal predecessors, (11820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:55,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 11820 transitions.
[2021-10-08 16:40:55,495 INFO  L78                 Accepts]: Start accepts. Automaton has 3222 states and 11820 transitions. Word has length 9
[2021-10-08 16:40:55,495 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:40:55,495 INFO  L470      AbstractCegarLoop]: Abstraction has 3222 states and 11820 transitions.
[2021-10-08 16:40:55,495 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:55,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 3222 states and 11820 transitions.
[2021-10-08 16:40:55,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:40:55,496 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:40:55,496 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:40:55,508 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2021-10-08 16:40:55,706 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:40:55,707 INFO  L402      AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:40:55,707 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:40:55,707 INFO  L82        PathProgramCache]: Analyzing trace with hash 1783191432, now seen corresponding path program 1 times
[2021-10-08 16:40:55,708 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:40:55,709 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788504072]
[2021-10-08 16:40:55,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:40:55,709 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:40:55,709 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:40:55,710 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:40:55,711 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2021-10-08 16:40:55,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:40:55,962 INFO  L263         TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-08 16:40:56,038 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:40:56,106 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:40:56,107 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 30
[2021-10-08 16:40:56,166 INFO  L354             Elim1Store]: treesize reduction 15, result has 46.4 percent of original size
[2021-10-08 16:40:56,166 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29
[2021-10-08 16:40:56,260 INFO  L354             Elim1Store]: treesize reduction 30, result has 36.2 percent of original size
[2021-10-08 16:40:56,260 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 54
[2021-10-08 16:40:56,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-08 16:40:56,420 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:40:58,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-08 16:40:58,520 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:40:58,521 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788504072]
[2021-10-08 16:40:58,521 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [788504072] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:40:58,521 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:40:58,521 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4
[2021-10-08 16:40:58,521 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480239073]
[2021-10-08 16:40:58,521 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-08 16:40:58,521 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:40:58,527 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-08 16:40:58,527 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30
[2021-10-08 16:40:58,528 INFO  L87              Difference]: Start difference. First operand 3222 states and 11820 transitions. Second operand  has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:58,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:40:58,998 INFO  L93              Difference]: Finished difference Result 2438 states and 8838 transitions.
[2021-10-08 16:40:59,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-08 16:40:59,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:40:59,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:40:59,008 INFO  L225             Difference]: With dead ends: 2438
[2021-10-08 16:40:59,008 INFO  L226             Difference]: Without dead ends: 2438
[2021-10-08 16:40:59,008 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2162.2ms TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42
[2021-10-08 16:40:59,013 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2438 states.
[2021-10-08 16:40:59,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 2438.
[2021-10-08 16:40:59,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2438 states, 2323 states have (on average 3.8045630650021525) internal successors, (8838), 2437 states have internal predecessors, (8838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:59,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 8838 transitions.
[2021-10-08 16:40:59,075 INFO  L78                 Accepts]: Start accepts. Automaton has 2438 states and 8838 transitions. Word has length 9
[2021-10-08 16:40:59,076 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:40:59,076 INFO  L470      AbstractCegarLoop]: Abstraction has 2438 states and 8838 transitions.
[2021-10-08 16:40:59,076 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:40:59,076 INFO  L276                IsEmpty]: Start isEmpty. Operand 2438 states and 8838 transitions.
[2021-10-08 16:40:59,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:40:59,081 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:40:59,081 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:40:59,092 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2021-10-08 16:40:59,281 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:40:59,282 INFO  L402      AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:40:59,283 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:40:59,284 INFO  L82        PathProgramCache]: Analyzing trace with hash 1783191433, now seen corresponding path program 1 times
[2021-10-08 16:40:59,284 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:40:59,287 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411851199]
[2021-10-08 16:40:59,287 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:40:59,287 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:40:59,288 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:40:59,288 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:40:59,323 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2021-10-08 16:40:59,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:40:59,567 INFO  L263         TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core
[2021-10-08 16:40:59,568 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:40:59,592 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:40:59,594 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:40:59,856 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:40:59,857 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 89
[2021-10-08 16:40:59,993 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:40:59,994 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 103
[2021-10-08 16:41:00,206 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:41:00,206 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 50
[2021-10-08 16:41:00,241 INFO  L354             Elim1Store]: treesize reduction 15, result has 46.4 percent of original size
[2021-10-08 16:41:00,242 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 54
[2021-10-08 16:41:00,561 INFO  L354             Elim1Store]: treesize reduction 40, result has 21.6 percent of original size
[2021-10-08 16:41:00,561 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 69
[2021-10-08 16:41:00,604 INFO  L354             Elim1Store]: treesize reduction 16, result has 36.0 percent of original size
[2021-10-08 16:41:00,604 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 65
[2021-10-08 16:41:07,120 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:41:07,120 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:41:10,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:41:10,185 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:41:10,185 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411851199]
[2021-10-08 16:41:10,185 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411851199] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:41:10,185 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:41:10,186 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2021-10-08 16:41:10,186 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678211185]
[2021-10-08 16:41:10,186 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-10-08 16:41:10,186 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:41:10,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-08 16:41:10,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=100, Unknown=2, NotChecked=0, Total=132
[2021-10-08 16:41:10,187 INFO  L87              Difference]: Start difference. First operand 2438 states and 8838 transitions. Second operand  has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:41:18,569 WARN  L207               SmtUtils]: Spent 8.15 s on a formula simplification. DAG size of input: 42 DAG size of output: 41
[2021-10-08 16:42:13,700 WARN  L207               SmtUtils]: Spent 7.09 s on a formula simplification. DAG size of input: 56 DAG size of output: 55
[2021-10-08 16:42:28,555 WARN  L207               SmtUtils]: Spent 9.89 s on a formula simplification. DAG size of input: 88 DAG size of output: 87
[2021-10-08 16:42:42,871 WARN  L207               SmtUtils]: Spent 7.46 s on a formula simplification. DAG size of input: 58 DAG size of output: 57
[2021-10-08 16:43:38,196 WARN  L207               SmtUtils]: Spent 9.00 s on a formula simplification. DAG size of input: 90 DAG size of output: 89
[2021-10-08 16:43:59,901 WARN  L207               SmtUtils]: Spent 16.55 s on a formula simplification. DAG size of input: 64 DAG size of output: 63
[2021-10-08 16:44:27,005 WARN  L207               SmtUtils]: Spent 10.56 s on a formula simplification. DAG size of input: 94 DAG size of output: 93
[2021-10-08 16:44:36,336 WARN  L207               SmtUtils]: Spent 8.56 s on a formula simplification. DAG size of input: 51 DAG size of output: 50
[2021-10-08 16:44:45,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:44:45,067 INFO  L93              Difference]: Finished difference Result 35889 states and 127549 transitions.
[2021-10-08 16:44:45,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. 
[2021-10-08 16:44:45,069 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:44:45,070 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:44:45,234 INFO  L225             Difference]: With dead ends: 35889
[2021-10-08 16:44:45,234 INFO  L226             Difference]: Without dead ends: 35889
[2021-10-08 16:44:45,235 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 188442.3ms TimeCoverageRelationStatistics Valid=552, Invalid=1771, Unknown=29, NotChecked=0, Total=2352
[2021-10-08 16:44:45,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35889 states.
[2021-10-08 16:44:45,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35889 to 2979.
[2021-10-08 16:44:45,940 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2979 states, 2892 states have (on average 3.870331950207469) internal successors, (11193), 2978 states have internal predecessors, (11193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:45,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 11193 transitions.
[2021-10-08 16:44:45,958 INFO  L78                 Accepts]: Start accepts. Automaton has 2979 states and 11193 transitions. Word has length 9
[2021-10-08 16:44:45,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:44:45,958 INFO  L470      AbstractCegarLoop]: Abstraction has 2979 states and 11193 transitions.
[2021-10-08 16:44:45,958 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:45,959 INFO  L276                IsEmpty]: Start isEmpty. Operand 2979 states and 11193 transitions.
[2021-10-08 16:44:45,959 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:44:45,959 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:44:45,959 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:44:45,974 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0
[2021-10-08 16:44:46,172 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:44:46,172 INFO  L402      AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:44:46,173 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:44:46,173 INFO  L82        PathProgramCache]: Analyzing trace with hash 1216862963, now seen corresponding path program 1 times
[2021-10-08 16:44:46,174 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:44:46,174 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961249165]
[2021-10-08 16:44:46,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:44:46,174 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:44:46,174 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:44:46,176 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:44:46,179 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2021-10-08 16:44:46,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:44:46,385 INFO  L263         TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-08 16:44:46,385 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:44:46,392 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-08 16:44:46,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:46,430 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:44:46,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:46,462 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:44:46,463 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961249165]
[2021-10-08 16:44:46,463 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [961249165] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:44:46,463 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:44:46,463 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-10-08 16:44:46,463 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224375813]
[2021-10-08 16:44:46,464 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-08 16:44:46,464 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:44:46,465 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-08 16:44:46,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-08 16:44:46,465 INFO  L87              Difference]: Start difference. First operand 2979 states and 11193 transitions. Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:46,831 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:44:46,831 INFO  L93              Difference]: Finished difference Result 2165 states and 8079 transitions.
[2021-10-08 16:44:46,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-08 16:44:46,832 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:44:46,832 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:44:46,838 INFO  L225             Difference]: With dead ends: 2165
[2021-10-08 16:44:46,839 INFO  L226             Difference]: Without dead ends: 2165
[2021-10-08 16:44:46,839 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-08 16:44:46,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2165 states.
[2021-10-08 16:44:46,872 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2165.
[2021-10-08 16:44:46,875 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2165 states, 2117 states have (on average 3.8162494095418045) internal successors, (8079), 2164 states have internal predecessors, (8079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:46,885 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 8079 transitions.
[2021-10-08 16:44:46,885 INFO  L78                 Accepts]: Start accepts. Automaton has 2165 states and 8079 transitions. Word has length 9
[2021-10-08 16:44:46,886 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:44:46,886 INFO  L470      AbstractCegarLoop]: Abstraction has 2165 states and 8079 transitions.
[2021-10-08 16:44:46,886 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:46,886 INFO  L276                IsEmpty]: Start isEmpty. Operand 2165 states and 8079 transitions.
[2021-10-08 16:44:46,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:44:46,887 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:44:46,887 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:44:46,902 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0
[2021-10-08 16:44:47,100 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:44:47,101 INFO  L402      AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:44:47,101 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:44:47,102 INFO  L82        PathProgramCache]: Analyzing trace with hash 1216862964, now seen corresponding path program 1 times
[2021-10-08 16:44:47,102 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:44:47,102 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872873553]
[2021-10-08 16:44:47,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:44:47,103 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:44:47,103 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:44:47,104 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:44:47,106 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process
[2021-10-08 16:44:47,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:44:47,328 INFO  L263         TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjunts are in the unsatisfiable core
[2021-10-08 16:44:47,329 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:44:47,348 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2021-10-08 16:44:47,490 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:47,491 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:44:47,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:47,935 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:44:47,935 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872873553]
[2021-10-08 16:44:47,935 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [872873553] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:44:47,936 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:44:47,936 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-08 16:44:47,936 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912409995]
[2021-10-08 16:44:47,936 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:44:47,936 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:44:47,937 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:44:47,937 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:44:47,937 INFO  L87              Difference]: Start difference. First operand 2165 states and 8079 transitions. Second operand  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:49,262 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:44:49,262 INFO  L93              Difference]: Finished difference Result 4613 states and 17825 transitions.
[2021-10-08 16:44:49,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:44:49,264 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:44:49,264 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:44:49,278 INFO  L225             Difference]: With dead ends: 4613
[2021-10-08 16:44:49,279 INFO  L226             Difference]: Without dead ends: 4613
[2021-10-08 16:44:49,279 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 375.1ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-10-08 16:44:49,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4613 states.
[2021-10-08 16:44:49,340 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4613 to 2771.
[2021-10-08 16:44:49,343 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2771 states, 2723 states have (on average 4.2471538744032316) internal successors, (11565), 2770 states have internal predecessors, (11565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:49,354 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 11565 transitions.
[2021-10-08 16:44:49,354 INFO  L78                 Accepts]: Start accepts. Automaton has 2771 states and 11565 transitions. Word has length 9
[2021-10-08 16:44:49,355 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:44:49,355 INFO  L470      AbstractCegarLoop]: Abstraction has 2771 states and 11565 transitions.
[2021-10-08 16:44:49,355 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:49,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 2771 states and 11565 transitions.
[2021-10-08 16:44:49,355 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-08 16:44:49,355 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:44:49,356 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:44:49,366 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0
[2021-10-08 16:44:49,556 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:44:49,556 INFO  L402      AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:44:49,558 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:44:49,558 INFO  L82        PathProgramCache]: Analyzing trace with hash 1216862854, now seen corresponding path program 1 times
[2021-10-08 16:44:49,558 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:44:49,559 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154632483]
[2021-10-08 16:44:49,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:44:49,559 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:44:49,559 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:44:49,560 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:44:49,561 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process
[2021-10-08 16:44:49,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:44:49,793 INFO  L263         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:44:49,794 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:44:49,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:49,896 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:44:49,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:49,971 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:44:49,971 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154632483]
[2021-10-08 16:44:49,971 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154632483] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:44:49,971 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:44:49,971 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6
[2021-10-08 16:44:49,972 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008079852]
[2021-10-08 16:44:49,972 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:44:49,972 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:44:49,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:44:49,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:44:49,973 INFO  L87              Difference]: Start difference. First operand 2771 states and 11565 transitions. Second operand  has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:50,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:44:50,334 INFO  L93              Difference]: Finished difference Result 2940 states and 11996 transitions.
[2021-10-08 16:44:50,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:44:50,336 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-10-08 16:44:50,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:44:50,348 INFO  L225             Difference]: With dead ends: 2940
[2021-10-08 16:44:50,348 INFO  L226             Difference]: Without dead ends: 2940
[2021-10-08 16:44:50,348 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 76.0ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:44:50,353 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2940 states.
[2021-10-08 16:44:50,394 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2880.
[2021-10-08 16:44:50,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2880 states, 2832 states have (on average 4.194562146892656) internal successors, (11879), 2879 states have internal predecessors, (11879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:50,409 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 11879 transitions.
[2021-10-08 16:44:50,409 INFO  L78                 Accepts]: Start accepts. Automaton has 2880 states and 11879 transitions. Word has length 9
[2021-10-08 16:44:50,409 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:44:50,409 INFO  L470      AbstractCegarLoop]: Abstraction has 2880 states and 11879 transitions.
[2021-10-08 16:44:50,410 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:50,410 INFO  L276                IsEmpty]: Start isEmpty. Operand 2880 states and 11879 transitions.
[2021-10-08 16:44:50,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2021-10-08 16:44:50,410 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:44:50,410 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:44:50,423 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0
[2021-10-08 16:44:50,621 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:44:50,621 INFO  L402      AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:44:50,622 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:44:50,622 INFO  L82        PathProgramCache]: Analyzing trace with hash -1772700496, now seen corresponding path program 1 times
[2021-10-08 16:44:50,623 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:44:50,623 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253183397]
[2021-10-08 16:44:50,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:44:50,623 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:44:50,624 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:44:50,625 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:44:50,626 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process
[2021-10-08 16:44:50,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:44:50,882 INFO  L263         TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:44:50,883 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:44:50,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:44:50,990 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:44:51,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:44:51,064 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:44:51,065 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253183397]
[2021-10-08 16:44:51,065 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253183397] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:44:51,065 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:44:51,065 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-08 16:44:51,065 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108468508]
[2021-10-08 16:44:51,065 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:44:51,066 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:44:51,066 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:44:51,066 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:44:51,066 INFO  L87              Difference]: Start difference. First operand 2880 states and 11879 transitions. Second operand  has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:51,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:44:51,698 INFO  L93              Difference]: Finished difference Result 3634 states and 14347 transitions.
[2021-10-08 16:44:51,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:44:51,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2021-10-08 16:44:51,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:44:51,712 INFO  L225             Difference]: With dead ends: 3634
[2021-10-08 16:44:51,712 INFO  L226             Difference]: Without dead ends: 3634
[2021-10-08 16:44:51,713 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:44:51,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3634 states.
[2021-10-08 16:44:51,767 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3222.
[2021-10-08 16:44:51,772 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3222 states, 3174 states have (on average 4.153434152488973) internal successors, (13183), 3221 states have internal predecessors, (13183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:51,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 13183 transitions.
[2021-10-08 16:44:51,792 INFO  L78                 Accepts]: Start accepts. Automaton has 3222 states and 13183 transitions. Word has length 10
[2021-10-08 16:44:51,792 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:44:51,792 INFO  L470      AbstractCegarLoop]: Abstraction has 3222 states and 13183 transitions.
[2021-10-08 16:44:51,792 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:44:51,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 3222 states and 13183 transitions.
[2021-10-08 16:44:51,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-08 16:44:51,793 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:44:51,793 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:44:51,807 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0
[2021-10-08 16:44:52,006 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:44:52,007 INFO  L402      AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:44:52,007 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:44:52,007 INFO  L82        PathProgramCache]: Analyzing trace with hash -773562099, now seen corresponding path program 1 times
[2021-10-08 16:44:52,008 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:44:52,008 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466856705]
[2021-10-08 16:44:52,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:44:52,009 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:44:52,009 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:44:52,010 INFO  L229       MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:44:52,011 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process
[2021-10-08 16:44:52,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:44:52,348 INFO  L263         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-10-08 16:44:52,349 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:44:52,371 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:44:52,372 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:44:52,666 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:44:52,666 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 89
[2021-10-08 16:44:52,755 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:44:52,755 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 103
[2021-10-08 16:44:52,931 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:44:52,932 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42
[2021-10-08 16:44:52,947 INFO  L354             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2021-10-08 16:44:52,948 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39
[2021-10-08 16:44:53,109 INFO  L354             Elim1Store]: treesize reduction 32, result has 37.3 percent of original size
[2021-10-08 16:44:53,109 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 47
[2021-10-08 16:44:54,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:54,733 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:44:56,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:44:56,649 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:44:56,649 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466856705]
[2021-10-08 16:44:56,649 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466856705] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:44:56,650 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:44:56,650 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13
[2021-10-08 16:44:56,650 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408264074]
[2021-10-08 16:44:56,650 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2021-10-08 16:44:56,650 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:44:56,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2021-10-08 16:44:56,651 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210
[2021-10-08 16:44:56,651 INFO  L87              Difference]: Start difference. First operand 3222 states and 13183 transitions. Second operand  has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:45:28,029 WARN  L207               SmtUtils]: Spent 6.82 s on a formula simplification. DAG size of input: 48 DAG size of output: 48
[2021-10-08 16:46:10,899 WARN  L207               SmtUtils]: Spent 11.18 s on a formula simplification. DAG size of input: 54 DAG size of output: 54
[2021-10-08 16:46:46,252 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:46:46,253 INFO  L93              Difference]: Finished difference Result 19080 states and 72135 transitions.
[2021-10-08 16:46:46,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. 
[2021-10-08 16:46:46,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-10-08 16:46:46,256 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:46:46,377 INFO  L225             Difference]: With dead ends: 19080
[2021-10-08 16:46:46,377 INFO  L226             Difference]: Without dead ends: 19080
[2021-10-08 16:46:46,378 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 73833.6ms TimeCoverageRelationStatistics Valid=461, Invalid=1601, Unknown=8, NotChecked=0, Total=2070
[2021-10-08 16:46:46,418 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19080 states.
[2021-10-08 16:46:46,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19080 to 3422.
[2021-10-08 16:46:46,678 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3422 states, 3383 states have (on average 4.067395802542122) internal successors, (13760), 3421 states have internal predecessors, (13760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:46,697 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 13760 transitions.
[2021-10-08 16:46:46,698 INFO  L78                 Accepts]: Start accepts. Automaton has 3422 states and 13760 transitions. Word has length 11
[2021-10-08 16:46:46,698 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:46:46,698 INFO  L470      AbstractCegarLoop]: Abstraction has 3422 states and 13760 transitions.
[2021-10-08 16:46:46,698 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:46,698 INFO  L276                IsEmpty]: Start isEmpty. Operand 3422 states and 13760 transitions.
[2021-10-08 16:46:46,699 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-08 16:46:46,700 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:46:46,700 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:46:46,715 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0
[2021-10-08 16:46:46,914 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:46:46,915 INFO  L402      AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:46:46,915 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:46:46,915 INFO  L82        PathProgramCache]: Analyzing trace with hash -44940922, now seen corresponding path program 1 times
[2021-10-08 16:46:46,916 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:46:46,916 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207040759]
[2021-10-08 16:46:46,916 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:46:46,916 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:46:46,916 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:46:46,918 INFO  L229       MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:46:46,957 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process
[2021-10-08 16:46:47,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:46:47,215 INFO  L263         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-10-08 16:46:47,216 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:46:47,436 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:46:47,436 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:46:47,683 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:46:47,683 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:46:47,683 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207040759]
[2021-10-08 16:46:47,683 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207040759] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:46:47,683 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:46:47,683 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10
[2021-10-08 16:46:47,683 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339877744]
[2021-10-08 16:46:47,684 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-10-08 16:46:47,684 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:46:47,684 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-08 16:46:47,684 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2021-10-08 16:46:47,685 INFO  L87              Difference]: Start difference. First operand 3422 states and 13760 transitions. Second operand  has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:48,805 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:46:48,806 INFO  L93              Difference]: Finished difference Result 6129 states and 23678 transitions.
[2021-10-08 16:46:48,808 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-10-08 16:46:48,808 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-10-08 16:46:48,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:46:48,829 INFO  L225             Difference]: With dead ends: 6129
[2021-10-08 16:46:48,829 INFO  L226             Difference]: Without dead ends: 6129
[2021-10-08 16:46:48,829 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 294.2ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2021-10-08 16:46:48,836 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6129 states.
[2021-10-08 16:46:48,917 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 4286.
[2021-10-08 16:46:48,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4286 states, 4247 states have (on average 4.158700259006357) internal successors, (17662), 4285 states have internal predecessors, (17662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:48,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 17662 transitions.
[2021-10-08 16:46:48,940 INFO  L78                 Accepts]: Start accepts. Automaton has 4286 states and 17662 transitions. Word has length 11
[2021-10-08 16:46:48,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:46:48,940 INFO  L470      AbstractCegarLoop]: Abstraction has 4286 states and 17662 transitions.
[2021-10-08 16:46:48,941 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:48,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 4286 states and 17662 transitions.
[2021-10-08 16:46:48,942 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-08 16:46:48,942 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:46:48,942 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:46:48,953 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0
[2021-10-08 16:46:49,147 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:46:49,148 INFO  L402      AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:46:49,149 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:46:49,149 INFO  L82        PathProgramCache]: Analyzing trace with hash 1181693161, now seen corresponding path program 1 times
[2021-10-08 16:46:49,149 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:46:49,150 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503688349]
[2021-10-08 16:46:49,150 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:46:49,150 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:46:49,151 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:46:49,152 INFO  L229       MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:46:49,155 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process
[2021-10-08 16:46:49,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:46:49,422 INFO  L263         TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 14 conjunts are in the unsatisfiable core
[2021-10-08 16:46:49,423 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:46:49,443 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2021-10-08 16:46:49,614 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:46:49,615 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:46:50,013 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:46:50,013 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:46:50,013 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503688349]
[2021-10-08 16:46:50,013 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503688349] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:46:50,013 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:46:50,014 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-08 16:46:50,014 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176907452]
[2021-10-08 16:46:50,014 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:46:50,014 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:46:50,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:46:50,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:46:50,015 INFO  L87              Difference]: Start difference. First operand 4286 states and 17662 transitions. Second operand  has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:51,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:46:51,460 INFO  L93              Difference]: Finished difference Result 8334 states and 35174 transitions.
[2021-10-08 16:46:51,462 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:46:51,462 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-10-08 16:46:51,462 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:46:51,494 INFO  L225             Difference]: With dead ends: 8334
[2021-10-08 16:46:51,494 INFO  L226             Difference]: Without dead ends: 8334
[2021-10-08 16:46:51,495 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 407.8ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-10-08 16:46:51,505 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8334 states.
[2021-10-08 16:46:51,616 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8334 to 5634.
[2021-10-08 16:46:51,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5634 states, 5595 states have (on average 4.681680071492404) internal successors, (26194), 5633 states have internal predecessors, (26194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:51,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 26194 transitions.
[2021-10-08 16:46:51,650 INFO  L78                 Accepts]: Start accepts. Automaton has 5634 states and 26194 transitions. Word has length 11
[2021-10-08 16:46:51,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:46:51,650 INFO  L470      AbstractCegarLoop]: Abstraction has 5634 states and 26194 transitions.
[2021-10-08 16:46:51,650 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:51,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 5634 states and 26194 transitions.
[2021-10-08 16:46:51,651 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-08 16:46:51,651 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:46:51,651 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:46:51,664 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0
[2021-10-08 16:46:51,863 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:46:51,864 INFO  L402      AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:46:51,865 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:46:51,865 INFO  L82        PathProgramCache]: Analyzing trace with hash 1181693022, now seen corresponding path program 1 times
[2021-10-08 16:46:51,865 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:46:51,866 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966929762]
[2021-10-08 16:46:51,866 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:46:51,866 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:46:51,866 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:46:51,867 INFO  L229       MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:46:51,868 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process
[2021-10-08 16:46:52,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:46:52,199 INFO  L263         TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:46:52,200 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:46:52,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:46:52,360 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:46:52,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:46:52,481 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:46:52,482 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966929762]
[2021-10-08 16:46:52,482 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966929762] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:46:52,482 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:46:52,482 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-08 16:46:52,482 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706213524]
[2021-10-08 16:46:52,483 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:46:52,483 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:46:52,483 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:46:52,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:46:52,484 INFO  L87              Difference]: Start difference. First operand 5634 states and 26194 transitions. Second operand  has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:52,929 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:46:52,929 INFO  L93              Difference]: Finished difference Result 5906 states and 26679 transitions.
[2021-10-08 16:46:52,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:46:52,930 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-10-08 16:46:52,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:46:53,017 INFO  L225             Difference]: With dead ends: 5906
[2021-10-08 16:46:53,017 INFO  L226             Difference]: Without dead ends: 5906
[2021-10-08 16:46:53,018 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 118.3ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:46:53,025 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5906 states.
[2021-10-08 16:46:53,116 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5906 to 5803.
[2021-10-08 16:46:53,124 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5803 states, 5764 states have (on average 4.587439278278973) internal successors, (26442), 5802 states have internal predecessors, (26442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:53,151 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 26442 transitions.
[2021-10-08 16:46:53,151 INFO  L78                 Accepts]: Start accepts. Automaton has 5803 states and 26442 transitions. Word has length 11
[2021-10-08 16:46:53,151 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:46:53,151 INFO  L470      AbstractCegarLoop]: Abstraction has 5803 states and 26442 transitions.
[2021-10-08 16:46:53,151 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:46:53,151 INFO  L276                IsEmpty]: Start isEmpty. Operand 5803 states and 26442 transitions.
[2021-10-08 16:46:53,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-08 16:46:53,152 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:46:53,152 INFO  L512         BasicCegarLoop]: trace histogram [8, 1, 1, 1]
[2021-10-08 16:46:53,164 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0
[2021-10-08 16:46:53,353 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:46:53,354 INFO  L402      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:46:53,354 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:46:53,355 INFO  L82        PathProgramCache]: Analyzing trace with hash 1822309776, now seen corresponding path program 1 times
[2021-10-08 16:46:53,355 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:46:53,355 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882461546]
[2021-10-08 16:46:53,356 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:46:53,356 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:46:53,356 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:46:53,357 INFO  L229       MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:46:53,358 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process
[2021-10-08 16:46:53,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:46:53,641 INFO  L263         TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 17 conjunts are in the unsatisfiable core
[2021-10-08 16:46:53,642 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:46:53,664 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2021-10-08 16:46:54,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:46:54,142 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:46:57,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-08 16:46:57,065 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:46:57,065 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882461546]
[2021-10-08 16:46:57,065 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882461546] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:46:57,066 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:46:57,066 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19
[2021-10-08 16:46:57,066 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076955076]
[2021-10-08 16:46:57,066 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2021-10-08 16:46:57,066 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:46:57,066 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-10-08 16:46:57,067 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380
[2021-10-08 16:46:57,067 INFO  L87              Difference]: Start difference. First operand 5803 states and 26442 transitions. Second operand  has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:47:53,161 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:47:53,162 INFO  L93              Difference]: Finished difference Result 49391 states and 227231 transitions.
[2021-10-08 16:47:53,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2021-10-08 16:47:53,164 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-10-08 16:47:53,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:47:53,526 INFO  L225             Difference]: With dead ends: 49391
[2021-10-08 16:47:53,526 INFO  L226             Difference]: Without dead ends: 49391
[2021-10-08 16:47:53,526 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 14385.7ms TimeCoverageRelationStatistics Valid=278, Invalid=478, Unknown=0, NotChecked=0, Total=756
[2021-10-08 16:47:53,603 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49391 states.
[2021-10-08 16:47:54,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49391 to 5863.
[2021-10-08 16:47:54,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5863 states, 5824 states have (on average 4.560782967032967) internal successors, (26562), 5862 states have internal predecessors, (26562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:47:54,663 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 26562 transitions.
[2021-10-08 16:47:54,663 INFO  L78                 Accepts]: Start accepts. Automaton has 5863 states and 26562 transitions. Word has length 11
[2021-10-08 16:47:54,663 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:47:54,664 INFO  L470      AbstractCegarLoop]: Abstraction has 5863 states and 26562 transitions.
[2021-10-08 16:47:54,664 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:47:54,664 INFO  L276                IsEmpty]: Start isEmpty. Operand 5863 states and 26562 transitions.
[2021-10-08 16:47:54,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-10-08 16:47:54,665 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:47:54,665 INFO  L512         BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:47:54,677 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0
[2021-10-08 16:47:54,865 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:47:54,866 INFO  L402      AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:47:54,866 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:47:54,866 INFO  L82        PathProgramCache]: Analyzing trace with hash 969186419, now seen corresponding path program 2 times
[2021-10-08 16:47:54,866 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:47:54,867 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019141830]
[2021-10-08 16:47:54,867 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-08 16:47:54,867 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:47:54,867 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:47:54,874 INFO  L229       MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:47:54,876 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process
[2021-10-08 16:47:55,243 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-10-08 16:47:55,243 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-08 16:47:55,248 INFO  L263         TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core
[2021-10-08 16:47:55,249 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:47:55,268 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:47:55,271 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:47:55,637 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:47:55,637 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 89
[2021-10-08 16:47:55,782 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:47:55,782 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 103
[2021-10-08 16:47:55,983 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:47:55,983 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42
[2021-10-08 16:47:56,017 INFO  L354             Elim1Store]: treesize reduction 15, result has 46.4 percent of original size
[2021-10-08 16:47:56,018 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 46
[2021-10-08 16:47:56,300 INFO  L354             Elim1Store]: treesize reduction 40, result has 21.6 percent of original size
[2021-10-08 16:47:56,301 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 67
[2021-10-08 16:47:56,351 INFO  L354             Elim1Store]: treesize reduction 16, result has 36.0 percent of original size
[2021-10-08 16:47:56,352 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 63
[2021-10-08 16:48:02,964 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2021-10-08 16:48:02,965 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:48:06,388 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2021-10-08 16:48:06,389 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:48:06,389 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019141830]
[2021-10-08 16:48:06,389 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019141830] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:48:06,389 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:48:06,390 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8
[2021-10-08 16:48:06,390 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128690603]
[2021-10-08 16:48:06,390 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-08 16:48:06,391 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:48:06,391 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-08 16:48:06,391 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=64, Unknown=2, NotChecked=0, Total=90
[2021-10-08 16:48:06,391 INFO  L87              Difference]: Start difference. First operand 5863 states and 26562 transitions. Second operand  has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:17,171 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:48:17,171 INFO  L93              Difference]: Finished difference Result 8477 states and 37816 transitions.
[2021-10-08 16:48:17,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-08 16:48:17,173 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-10-08 16:48:17,173 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:48:17,256 INFO  L225             Difference]: With dead ends: 8477
[2021-10-08 16:48:17,257 INFO  L226             Difference]: Without dead ends: 8477
[2021-10-08 16:48:17,257 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 14852.5ms TimeCoverageRelationStatistics Valid=48, Invalid=106, Unknown=2, NotChecked=0, Total=156
[2021-10-08 16:48:17,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8477 states.
[2021-10-08 16:48:17,411 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 5679.
[2021-10-08 16:48:17,419 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5679 states, 5640 states have (on average 4.636879432624114) internal successors, (26152), 5678 states have internal predecessors, (26152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:17,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 26152 transitions.
[2021-10-08 16:48:17,445 INFO  L78                 Accepts]: Start accepts. Automaton has 5679 states and 26152 transitions. Word has length 12
[2021-10-08 16:48:17,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:48:17,446 INFO  L470      AbstractCegarLoop]: Abstraction has 5679 states and 26152 transitions.
[2021-10-08 16:48:17,446 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:17,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 5679 states and 26152 transitions.
[2021-10-08 16:48:17,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-10-08 16:48:17,447 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:48:17,447 INFO  L512         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:48:17,458 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0
[2021-10-08 16:48:17,654 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:48:17,654 INFO  L402      AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:48:17,655 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:48:17,655 INFO  L82        PathProgramCache]: Analyzing trace with hash 317800752, now seen corresponding path program 2 times
[2021-10-08 16:48:17,656 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:48:17,656 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658297996]
[2021-10-08 16:48:17,656 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-08 16:48:17,657 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:48:17,657 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:48:17,658 INFO  L229       MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:48:17,659 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process
[2021-10-08 16:48:18,095 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-08 16:48:18,095 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-08 16:48:18,103 INFO  L263         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 16 conjunts are in the unsatisfiable core
[2021-10-08 16:48:18,105 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:48:18,123 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2021-10-08 16:48:18,133 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-08 16:48:18,221 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:48:18,221 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32
[2021-10-08 16:48:18,238 INFO  L354             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2021-10-08 16:48:18,239 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29
[2021-10-08 16:48:19,888 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-08 16:48:19,889 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:48:20,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-08 16:48:20,562 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:48:20,562 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658297996]
[2021-10-08 16:48:20,562 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [658297996] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:48:20,562 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:48:20,562 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2021-10-08 16:48:20,562 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500694976]
[2021-10-08 16:48:20,563 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-08 16:48:20,563 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:48:20,563 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-08 16:48:20,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:48:20,564 INFO  L87              Difference]: Start difference. First operand 5679 states and 26152 transitions. Second operand  has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:27,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:48:27,871 INFO  L93              Difference]: Finished difference Result 11165 states and 48894 transitions.
[2021-10-08 16:48:27,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-10-08 16:48:27,873 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-10-08 16:48:27,873 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:48:27,922 INFO  L225             Difference]: With dead ends: 11165
[2021-10-08 16:48:27,922 INFO  L226             Difference]: Without dead ends: 11165
[2021-10-08 16:48:27,922 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 6344.3ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2021-10-08 16:48:27,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11165 states.
[2021-10-08 16:48:28,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5716.
[2021-10-08 16:48:28,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5716 states, 5677 states have (on average 4.711467324290998) internal successors, (26747), 5715 states have internal predecessors, (26747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:28,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 26747 transitions.
[2021-10-08 16:48:28,194 INFO  L78                 Accepts]: Start accepts. Automaton has 5716 states and 26747 transitions. Word has length 12
[2021-10-08 16:48:28,194 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:48:28,194 INFO  L470      AbstractCegarLoop]: Abstraction has 5716 states and 26747 transitions.
[2021-10-08 16:48:28,195 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:28,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 5716 states and 26747 transitions.
[2021-10-08 16:48:28,196 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-10-08 16:48:28,196 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:48:28,196 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:48:28,207 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0
[2021-10-08 16:48:28,396 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:48:28,400 INFO  L402      AbstractCegarLoop]: === Iteration 27 === Targeting thread3Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:48:28,401 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:48:28,401 INFO  L82        PathProgramCache]: Analyzing trace with hash 16419933, now seen corresponding path program 1 times
[2021-10-08 16:48:28,401 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:48:28,401 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715612900]
[2021-10-08 16:48:28,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:48:28,402 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:48:28,403 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:48:28,403 INFO  L229       MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:48:28,404 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process
[2021-10-08 16:48:28,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:48:28,753 INFO  L263         TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-08 16:48:28,754 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:48:28,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:48:28,874 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:48:28,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:48:28,961 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:48:28,961 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715612900]
[2021-10-08 16:48:28,961 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [715612900] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:48:28,962 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:48:28,962 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-08 16:48:28,962 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764937002]
[2021-10-08 16:48:28,962 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-08 16:48:28,962 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:48:28,963 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-08 16:48:28,963 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-08 16:48:28,963 INFO  L87              Difference]: Start difference. First operand 5716 states and 26747 transitions. Second operand  has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:29,350 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:48:29,351 INFO  L93              Difference]: Finished difference Result 5762 states and 26077 transitions.
[2021-10-08 16:48:29,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-08 16:48:29,352 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-10-08 16:48:29,352 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:48:29,372 INFO  L225             Difference]: With dead ends: 5762
[2021-10-08 16:48:29,372 INFO  L226             Difference]: Without dead ends: 5762
[2021-10-08 16:48:29,372 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.0ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:48:29,379 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5762 states.
[2021-10-08 16:48:29,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 5546.
[2021-10-08 16:48:29,559 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5546 states, 5507 states have (on average 4.641910295986926) internal successors, (25563), 5545 states have internal predecessors, (25563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:29,597 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5546 states to 5546 states and 25563 transitions.
[2021-10-08 16:48:29,597 INFO  L78                 Accepts]: Start accepts. Automaton has 5546 states and 25563 transitions. Word has length 12
[2021-10-08 16:48:29,597 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:48:29,597 INFO  L470      AbstractCegarLoop]: Abstraction has 5546 states and 25563 transitions.
[2021-10-08 16:48:29,598 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:29,598 INFO  L276                IsEmpty]: Start isEmpty. Operand 5546 states and 25563 transitions.
[2021-10-08 16:48:29,599 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-10-08 16:48:29,599 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:48:29,600 INFO  L512         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:48:29,614 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0
[2021-10-08 16:48:29,813 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:48:29,814 INFO  L402      AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:48:29,814 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:48:29,815 INFO  L82        PathProgramCache]: Analyzing trace with hash -1504952858, now seen corresponding path program 2 times
[2021-10-08 16:48:29,815 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:48:29,815 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028106567]
[2021-10-08 16:48:29,816 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-08 16:48:29,816 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:48:29,816 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:48:29,817 INFO  L229       MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:48:29,818 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process
[2021-10-08 16:48:30,233 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-10-08 16:48:30,233 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-08 16:48:30,239 INFO  L263         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 22 conjunts are in the unsatisfiable core
[2021-10-08 16:48:30,240 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:48:30,259 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:48:30,262 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2021-10-08 16:48:30,567 INFO  L354             Elim1Store]: treesize reduction 229, result has 22.6 percent of original size
[2021-10-08 16:48:30,568 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 89
[2021-10-08 16:48:30,668 INFO  L354             Elim1Store]: treesize reduction 84, result has 22.9 percent of original size
[2021-10-08 16:48:30,669 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 103
[2021-10-08 16:48:30,853 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:48:30,853 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35
[2021-10-08 16:48:30,867 INFO  L354             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2021-10-08 16:48:30,867 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32
[2021-10-08 16:48:31,167 INFO  L354             Elim1Store]: treesize reduction 32, result has 37.3 percent of original size
[2021-10-08 16:48:31,167 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 40
[2021-10-08 16:48:34,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2021-10-08 16:48:34,114 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:48:35,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2021-10-08 16:48:35,766 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:48:35,766 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028106567]
[2021-10-08 16:48:35,767 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028106567] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:48:35,767 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:48:35,767 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8
[2021-10-08 16:48:35,767 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290572123]
[2021-10-08 16:48:35,767 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-08 16:48:35,767 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:48:35,768 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-08 16:48:35,768 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:48:35,768 INFO  L87              Difference]: Start difference. First operand 5546 states and 25563 transitions. Second operand  has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:40,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:48:40,323 INFO  L93              Difference]: Finished difference Result 7264 states and 31698 transitions.
[2021-10-08 16:48:40,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-10-08 16:48:40,326 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-10-08 16:48:40,327 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:48:40,353 INFO  L225             Difference]: With dead ends: 7264
[2021-10-08 16:48:40,353 INFO  L226             Difference]: Without dead ends: 7264
[2021-10-08 16:48:40,353 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1254.3ms TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2021-10-08 16:48:40,362 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7264 states.
[2021-10-08 16:48:40,453 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7264 to 4913.
[2021-10-08 16:48:40,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4913 states, 4874 states have (on average 4.520927369716865) internal successors, (22035), 4912 states have internal predecessors, (22035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:40,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 22035 transitions.
[2021-10-08 16:48:40,480 INFO  L78                 Accepts]: Start accepts. Automaton has 4913 states and 22035 transitions. Word has length 13
[2021-10-08 16:48:40,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:48:40,481 INFO  L470      AbstractCegarLoop]: Abstraction has 4913 states and 22035 transitions.
[2021-10-08 16:48:40,481 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:40,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 4913 states and 22035 transitions.
[2021-10-08 16:48:40,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-10-08 16:48:40,483 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:48:40,483 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:48:40,494 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0
[2021-10-08 16:48:40,691 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:48:40,691 INFO  L402      AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:48:40,692 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:48:40,692 INFO  L82        PathProgramCache]: Analyzing trace with hash -363692871, now seen corresponding path program 1 times
[2021-10-08 16:48:40,693 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:48:40,693 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753580548]
[2021-10-08 16:48:40,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:48:40,694 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:48:40,694 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:48:40,695 INFO  L229       MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:48:40,696 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process
[2021-10-08 16:48:41,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:48:41,073 INFO  L263         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-08 16:48:41,074 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:48:41,180 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-08 16:48:41,181 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:48:41,309 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9
[2021-10-08 16:48:41,528 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-08 16:48:41,529 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:48:41,529 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753580548]
[2021-10-08 16:48:41,529 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753580548] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-08 16:48:41,529 INFO  L186   FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-08 16:48:41,529 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9
[2021-10-08 16:48:41,529 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885530478]
[2021-10-08 16:48:41,530 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-08 16:48:41,530 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:48:41,530 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-08 16:48:41,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:48:41,531 INFO  L87              Difference]: Start difference. First operand 4913 states and 22035 transitions. Second operand  has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:42,813 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-08 16:48:42,814 INFO  L93              Difference]: Finished difference Result 7493 states and 32610 transitions.
[2021-10-08 16:48:42,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-08 16:48:42,815 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-10-08 16:48:42,815 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-08 16:48:42,843 INFO  L225             Difference]: With dead ends: 7493
[2021-10-08 16:48:42,843 INFO  L226             Difference]: Without dead ends: 7493
[2021-10-08 16:48:42,843 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 402.7ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210
[2021-10-08 16:48:42,854 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7493 states.
[2021-10-08 16:48:43,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 4571.
[2021-10-08 16:48:43,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4571 states, 4541 states have (on average 4.519929530940321) internal successors, (20525), 4570 states have internal predecessors, (20525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:43,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4571 states to 4571 states and 20525 transitions.
[2021-10-08 16:48:43,034 INFO  L78                 Accepts]: Start accepts. Automaton has 4571 states and 20525 transitions. Word has length 13
[2021-10-08 16:48:43,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-08 16:48:43,034 INFO  L470      AbstractCegarLoop]: Abstraction has 4571 states and 20525 transitions.
[2021-10-08 16:48:43,034 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-08 16:48:43,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 4571 states and 20525 transitions.
[2021-10-08 16:48:43,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-10-08 16:48:43,036 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-08 16:48:43,036 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-08 16:48:43,047 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0
[2021-10-08 16:48:43,241 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-10-08 16:48:43,244 INFO  L402      AbstractCegarLoop]: === Iteration 30 === Targeting thread3Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 67 more)] ===
[2021-10-08 16:48:43,245 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-08 16:48:43,245 INFO  L82        PathProgramCache]: Analyzing trace with hash -480057488, now seen corresponding path program 1 times
[2021-10-08 16:48:43,246 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-10-08 16:48:43,246 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720834497]
[2021-10-08 16:48:43,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-08 16:48:43,246 INFO  L170          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-08 16:48:43,247 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat
[2021-10-08 16:48:43,248 INFO  L229       MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-08 16:48:43,252 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process
[2021-10-08 16:48:43,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-08 16:48:43,729 INFO  L263         TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 16 conjunts are in the unsatisfiable core
[2021-10-08 16:48:43,730 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-08 16:48:43,748 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2021-10-08 16:48:43,759 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2021-10-08 16:48:43,894 INFO  L354             Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2021-10-08 16:48:43,894 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43
[2021-10-08 16:48:43,909 INFO  L354             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2021-10-08 16:48:43,909 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 40
[2021-10-08 16:48:45,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:48:45,806 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-10-08 16:48:46,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-10-08 16:48:46,464 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-10-08 16:48:46,464 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720834497]
[2021-10-08 16:48:46,464 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [720834497] provided 0 perfect and 2 imperfect interpolant sequences
[2021-10-08 16:48:46,464 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-08 16:48:46,464 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2021-10-08 16:48:46,464 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119508860]
[2021-10-08 16:48:46,465 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-08 16:48:46,465 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-10-08 16:48:46,465 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-08 16:48:46,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2021-10-08 16:48:46,466 INFO  L87              Difference]: Start difference. First operand 4571 states and 20525 transitions. Second operand  has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 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)
Received shutdown request...
[2021-10-08 16:49:13,149 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2021-10-08 16:49:13,150 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2021-10-08 16:49:14,172 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0
[2021-10-08 16:49:14,350 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process
[2021-10-08 16:49:14,372 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137
[2021-10-08 16:49:14,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2021-10-08 16:49:14,376 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1REQUIRES_VIOLATION
[2021-10-08 16:49:14,377 WARN  L594      AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
[2021-10-08 16:49:14,380 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION
[2021-10-08 16:49:14,386 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION
[2021-10-08 16:49:14,386 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2REQUIRES_VIOLATION
[2021-10-08 16:49:14,387 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3REQUIRES_VIOLATION
[2021-10-08 16:49:14,387 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4REQUIRES_VIOLATION
[2021-10-08 16:49:14,388 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5REQUIRES_VIOLATION
[2021-10-08 16:49:14,388 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6REQUIRES_VIOLATION
[2021-10-08 16:49:14,388 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7REQUIRES_VIOLATION
[2021-10-08 16:49:14,388 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6REQUIRES_VIOLATION
[2021-10-08 16:49:14,389 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7REQUIRES_VIOLATION
[2021-10-08 16:49:14,390 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0REQUIRES_VIOLATION
[2021-10-08 16:49:14,393 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1REQUIRES_VIOLATION
[2021-10-08 16:49:14,393 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2REQUIRES_VIOLATION
[2021-10-08 16:49:14,393 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3REQUIRES_VIOLATION
[2021-10-08 16:49:14,393 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION
[2021-10-08 16:49:14,394 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16REQUIRES_VIOLATION
[2021-10-08 16:49:14,395 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17REQUIRES_VIOLATION
[2021-10-08 16:49:14,396 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK
[2021-10-08 16:49:14,398 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK
[2021-10-08 16:49:14,398 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION
[2021-10-08 16:49:14,398 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION
[2021-10-08 16:49:14,398 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION
[2021-10-08 16:49:14,398 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION
[2021-10-08 16:49:14,398 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION
[2021-10-08 16:49:14,399 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7REQUIRES_VIOLATION
[2021-10-08 16:49:14,400 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0REQUIRES_VIOLATION
[2021-10-08 16:49:14,401 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2REQUIRES_VIOLATION
[2021-10-08 16:49:14,401 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3REQUIRES_VIOLATION
[2021-10-08 16:49:14,401 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4REQUIRES_VIOLATION
[2021-10-08 16:49:14,401 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5REQUIRES_VIOLATION
[2021-10-08 16:49:14,401 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6REQUIRES_VIOLATION
[2021-10-08 16:49:14,401 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7REQUIRES_VIOLATION
[2021-10-08 16:49:14,410 INFO  L229   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-10-08 16:49:14,411 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-08 16:49:14,414 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:49:14 BasicIcfg
[2021-10-08 16:49:14,415 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-08 16:49:14,416 INFO  L168              Benchmark]: Toolchain (without parser) took 833884.42 ms. Allocated memory was 169.9 MB in the beginning and 842.0 MB in the end (delta: 672.1 MB). Free memory was 143.9 MB in the beginning and 403.4 MB in the end (delta: -259.5 MB). Peak memory consumption was 413.6 MB. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,416 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 169.9 MB. Free memory is still 141.0 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,416 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 576.60 ms. Allocated memory is still 169.9 MB. Free memory was 143.3 MB in the beginning and 129.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,417 INFO  L168              Benchmark]: Boogie Procedure Inliner took 122.88 ms. Allocated memory is still 169.9 MB. Free memory was 128.9 MB in the beginning and 126.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,417 INFO  L168              Benchmark]: Boogie Preprocessor took 106.78 ms. Allocated memory is still 169.9 MB. Free memory was 126.3 MB in the beginning and 124.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,418 INFO  L168              Benchmark]: RCFGBuilder took 1463.49 ms. Allocated memory is still 169.9 MB. Free memory was 124.2 MB in the beginning and 130.4 MB in the end (delta: -6.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,419 INFO  L168              Benchmark]: TraceAbstraction took 831592.53 ms. Allocated memory was 169.9 MB in the beginning and 842.0 MB in the end (delta: 672.1 MB). Free memory was 130.4 MB in the beginning and 403.4 MB in the end (delta: -273.0 MB). Peak memory consumption was 399.7 MB. Max. memory is 8.0 GB.
[2021-10-08 16:49:14,422 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 169.9 MB. Free memory is still 141.0 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 576.60 ms. Allocated memory is still 169.9 MB. Free memory was 143.3 MB in the beginning and 129.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
 * Boogie Procedure Inliner took 122.88 ms. Allocated memory is still 169.9 MB. Free memory was 128.9 MB in the beginning and 126.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 106.78 ms. Allocated memory is still 169.9 MB. Free memory was 126.3 MB in the beginning and 124.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1463.49 ms. Allocated memory is still 169.9 MB. Free memory was 124.2 MB in the beginning and 130.4 MB in the end (delta: -6.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 831592.53 ms. Allocated memory was 169.9 MB in the beginning and 842.0 MB in the end (delta: 672.1 MB). Free memory was 130.4 MB in the beginning and 403.4 MB in the end (delta: -273.0 MB). Peak memory consumption was 399.7 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 60519.6ms, 332 PlacesBefore, 85 PlacesAfterwards, 351 TransitionsBefore, 83 TransitionsAfterwards, 21114 CoEnabledTransitionPairs, 7 FixpointIterations, 151 TrivialSequentialCompositions, 167 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 43 ConcurrentYvCompositions, 21 ChoiceCompositions, 410 TotalNumberOfCompositions, 32912 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22555, positive: 22319, positive conditional: 0, positive unconditional: 22319, negative: 236, negative conditional: 0, negative unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14801, positive: 14735, positive conditional: 0, positive unconditional: 14735, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14801, positive: 14735, positive conditional: 0, positive unconditional: 14735, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 66, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3960, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3960, negative conditional: 0, negative unconditional: 3960, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 22555, positive: 7584, positive conditional: 0, positive unconditional: 7584, negative: 170, negative conditional: 0, negative unconditional: 170, unknown: 14801, unknown conditional: 0, unknown unconditional: 14801] , Statistics on independence cache: Total cache size (in pairs): 493, Positive cache size: 471, Positive conditional cache size: 0, Positive unconditional cache size: 471, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction)
    Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction)
    Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction)
    Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4571states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement),while PredicateUnifier was unifying predicates,while executing Executor.
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 7 procedures, 467 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 831167.0ms, OverallIterations: 30, TraceHistogramMax: 8, EmptinessCheckTime: 78.2ms, AutomataDifference: 584242.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61127.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1318 SDtfs, 12137 SDslu, 4942 SDs, 0 SdLazy, 12277 SolverSat, 971 SolverUnsat, 57 SolverUnknown, 0 SolverNotchecked, 229981.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 640 GetRequests, 251 SyntacticMatches, 15 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1966 ImplicationChecksByTransitivity, 419575.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10140occurred in iteration=0, InterpolantAutomatonStates: 291, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9038.8ms AutomataMinimizationTime, 29 MinimizatonAttempts, 239496 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 347.0ms SsaConstructionTime, 2296.0ms SatisfiabilityAnalysisTime, 103918.3ms InterpolantComputationTime, 262 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 464 ConstructedInterpolants, 112 QuantifiedInterpolants, 9529 SizeOfPredicates, 210 NumberOfNonLiveVariables, 2936 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 60 InterpolantComputations, 42 PerfectInterpolantSequences, 68/204 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown