/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19
[2022-03-16 16:16:37,394 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-03-16 16:16:37,396 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-03-16 16:16:37,470 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-03-16 16:16:37,471 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-03-16 16:16:37,474 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-03-16 16:16:37,476 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-03-16 16:16:37,478 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-03-16 16:16:37,480 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-03-16 16:16:37,484 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-03-16 16:16:37,485 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-03-16 16:16:37,486 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-03-16 16:16:37,486 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-03-16 16:16:37,487 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-03-16 16:16:37,488 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-03-16 16:16:37,489 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-03-16 16:16:37,489 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-03-16 16:16:37,490 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-03-16 16:16:37,491 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-03-16 16:16:37,493 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-03-16 16:16:37,494 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-03-16 16:16:37,498 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-03-16 16:16:37,501 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-03-16 16:16:37,503 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-03-16 16:16:37,515 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-03-16 16:16:37,516 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-03-16 16:16:37,516 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-03-16 16:16:37,518 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-03-16 16:16:37,518 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-03-16 16:16:37,519 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-03-16 16:16:37,519 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-03-16 16:16:37,520 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-03-16 16:16:37,521 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-03-16 16:16:37,522 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-03-16 16:16:37,523 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-03-16 16:16:37,523 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-03-16 16:16:37,524 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-03-16 16:16:37,524 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-03-16 16:16:37,524 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-03-16 16:16:37,525 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-03-16 16:16:37,526 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-03-16 16:16:37,527 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf
[2022-03-16 16:16:37,566 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-03-16 16:16:37,567 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-16 16:16:37,567 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-03-16 16:16:37,567 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-03-16 16:16:37,568 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-03-16 16:16:37,568 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-03-16 16:16:37,569 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-03-16 16:16:37,569 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-03-16 16:16:37,569 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-03-16 16:16:37,569 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-16 16:16:37,570 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-03-16 16:16:37,570 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-03-16 16:16:37,571 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-03-16 16:16:37,572 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-03-16 16:16:37,572 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-16 16:16:37,572 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-03-16 16:16:37,572 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-03-16 16:16:37,572 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-03-16 16:16:37,572 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-16 16:16:37,572 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-16 16:16:37,573 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-03-16 16:16:37,573 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-03-16 16:16:37,573 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-03-16 16:16:37,573 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-03-16 16:16:37,573 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-03-16 16:16:37,573 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-03-16 16:16:37,574 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-03-16 16:16:37,574 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-16 16:16:37,574 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS
[2022-03-16 16:16:37,574 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-03-16 16:16:37,852 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-16 16:16:37,885 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-16 16:16:37,887 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-16 16:16:37,888 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-03-16 16:16:37,889 INFO  L275        PluginConnector]: CDTParser initialized
[2022-03-16 16:16:37,890 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i
[2022-03-16 16:16:37,964 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3c5b1af/3c90fe25f97c463a87b80fdc20594a8a/FLAGbc2f2f239
[2022-03-16 16:16:38,440 INFO  L306              CDTParser]: Found 1 translation units.
[2022-03-16 16:16:38,441 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i
[2022-03-16 16:16:38,469 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3c5b1af/3c90fe25f97c463a87b80fdc20594a8a/FLAGbc2f2f239
[2022-03-16 16:16:38,729 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3c5b1af/3c90fe25f97c463a87b80fdc20594a8a
[2022-03-16 16:16:38,731 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-16 16:16:38,734 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-03-16 16:16:38,736 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-03-16 16:16:38,736 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-03-16 16:16:38,740 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-03-16 16:16:38,741 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:16:38" (1/1) ...
[2022-03-16 16:16:38,742 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c38ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:38, skipping insertion in model container
[2022-03-16 16:16:38,743 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:16:38" (1/1) ...
[2022-03-16 16:16:38,749 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-03-16 16:16:38,798 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-03-16 16:16:38,997 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099]
[2022-03-16 16:16:39,153 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-03-16 16:16:39,161 INFO  L203         MainTranslator]: Completed pre-run
[2022-03-16 16:16:39,172 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099]
[2022-03-16 16:16:39,206 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-03-16 16:16:39,228 INFO  L208         MainTranslator]: Completed translation
[2022-03-16 16:16:39,228 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39 WrapperNode
[2022-03-16 16:16:39,228 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-03-16 16:16:39,229 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-03-16 16:16:39,229 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-03-16 16:16:39,229 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-03-16 16:16:39,235 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,251 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,275 INFO  L137                Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76
[2022-03-16 16:16:39,275 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-03-16 16:16:39,276 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-16 16:16:39,276 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-16 16:16:39,276 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-03-16 16:16:39,282 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,283 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,285 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,285 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,290 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,291 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,292 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,294 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-16 16:16:39,295 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-16 16:16:39,295 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-03-16 16:16:39,295 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-03-16 16:16:39,296 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (1/1) ...
[2022-03-16 16:16:39,310 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-16 16:16:39,320 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 16:16:39,329 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-03-16 16:16:39,335 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-03-16 16:16:39,362 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-03-16 16:16:39,362 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-03-16 16:16:39,362 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-03-16 16:16:39,362 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-03-16 16:16:39,362 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-03-16 16:16:39,362 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2022-03-16 16:16:39,362 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2022-03-16 16:16:39,363 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-03-16 16:16:39,363 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-03-16 16:16:39,363 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-16 16:16:39,363 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-16 16:16:39,364 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-03-16 16:16:39,472 INFO  L234             CfgBuilder]: Building ICFG
[2022-03-16 16:16:39,473 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-16 16:16:39,662 INFO  L275             CfgBuilder]: Performing block encoding
[2022-03-16 16:16:39,668 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-16 16:16:39,669 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-03-16 16:16:39,670 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 04:16:39 BoogieIcfgContainer
[2022-03-16 16:16:39,670 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-16 16:16:39,672 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-16 16:16:39,672 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-03-16 16:16:39,683 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-03-16 16:16:39,684 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:16:38" (1/3) ...
[2022-03-16 16:16:39,684 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b88f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:16:39, skipping insertion in model container
[2022-03-16 16:16:39,684 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:16:39" (2/3) ...
[2022-03-16 16:16:39,685 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b88f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:16:39, skipping insertion in model container
[2022-03-16 16:16:39,685 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 04:16:39" (3/3) ...
[2022-03-16 16:16:39,686 INFO  L111   eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i
[2022-03-16 16:16:39,690 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-03-16 16:16:39,690 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-03-16 16:16:39,690 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2022-03-16 16:16:39,690 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-03-16 16:16:39,740 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,741 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,741 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,741 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,741 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,741 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,742 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,742 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,742 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,742 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,742 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,743 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,744 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,744 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,744 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,744 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,744 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,745 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,745 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,745 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,746 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,746 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,746 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,746 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,747 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,747 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,747 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,748 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,748 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,748 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,749 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,749 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,749 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,749 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,749 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,749 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,750 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,750 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,750 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,750 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,750 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,751 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,752 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,752 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,752 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,752 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,752 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,752 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,762 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,762 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,762 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,762 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,763 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,763 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,763 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,763 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 16:16:39,766 INFO  L148    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-03-16 16:16:39,811 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-03-16 16:16:39,811 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 16:16:39,817 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-03-16 16:16:39,818 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-03-16 16:16:39,844 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-16 16:16:39,851 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true
[2022-03-16 16:16:39,852 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2022-03-16 16:16:39,952 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 29 transitions and produced 30 states.
[2022-03-16 16:16:39,954 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] ===
[2022-03-16 16:16:39,959 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 16:16:39,959 INFO  L85        PathProgramCache]: Analyzing trace with hash -948070911, now seen corresponding path program 1 times
[2022-03-16 16:16:39,967 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 16:16:39,967 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966267332]
[2022-03-16 16:16:39,968 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 16:16:39,968 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 16:16:40,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 16:16:40,302 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 16:16:40,302 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 16:16:40,302 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966267332]
[2022-03-16 16:16:40,303 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966267332] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 16:16:40,303 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 16:16:40,303 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-03-16 16:16:40,305 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689143564]
[2022-03-16 16:16:40,305 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 16:16:40,309 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-03-16 16:16:40,309 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 16:16:40,326 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-03-16 16:16:40,327 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-03-16 16:16:40,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:40,329 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 16:16:40,330 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-03-16 16:16:40,330 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:40,613 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 60 transitions and produced 61 states.
[2022-03-16 16:16:40,616 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:16:40,621 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-03-16 16:16:40,621 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] ===
[2022-03-16 16:16:40,622 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 16:16:40,623 INFO  L85        PathProgramCache]: Analyzing trace with hash -1104650203, now seen corresponding path program 1 times
[2022-03-16 16:16:40,623 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 16:16:40,623 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757802033]
[2022-03-16 16:16:40,624 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 16:16:40,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 16:16:40,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 16:16:40,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 16:16:40,833 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 16:16:40,833 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757802033]
[2022-03-16 16:16:40,833 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757802033] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 16:16:40,833 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 16:16:40,833 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-03-16 16:16:40,834 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443341082]
[2022-03-16 16:16:40,834 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 16:16:40,835 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-03-16 16:16:40,835 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 16:16:40,837 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-03-16 16:16:40,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-03-16 16:16:40,839 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:40,839 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 16:16:40,840 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-03-16 16:16:40,840 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:16:40,840 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:41,286 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 82 transitions and produced 83 states.
[2022-03-16 16:16:41,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:16:41,287 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-03-16 16:16:41,287 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-03-16 16:16:41,287 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] ===
[2022-03-16 16:16:41,288 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 16:16:41,288 INFO  L85        PathProgramCache]: Analyzing trace with hash 1595028934, now seen corresponding path program 1 times
[2022-03-16 16:16:41,288 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 16:16:41,289 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008223278]
[2022-03-16 16:16:41,289 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 16:16:41,289 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 16:16:41,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 16:16:41,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 16:16:41,498 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 16:16:41,499 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008223278]
[2022-03-16 16:16:41,499 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008223278] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 16:16:41,499 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 16:16:41,499 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2022-03-16 16:16:41,499 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670174740]
[2022-03-16 16:16:41,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 16:16:41,500 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-03-16 16:16:41,500 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 16:16:41,501 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-03-16 16:16:41,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2022-03-16 16:16:41,501 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:41,501 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 16:16:41,502 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-03-16 16:16:41,502 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:16:41,502 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-03-16 16:16:41,502 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:41,897 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 88 transitions and produced 89 states.
[2022-03-16 16:16:41,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:16:41,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-03-16 16:16:41,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2022-03-16 16:16:41,898 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-03-16 16:16:41,898 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] ===
[2022-03-16 16:16:41,899 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 16:16:41,899 INFO  L85        PathProgramCache]: Analyzing trace with hash -1117375392, now seen corresponding path program 1 times
[2022-03-16 16:16:41,901 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 16:16:41,901 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618906513]
[2022-03-16 16:16:41,902 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 16:16:41,902 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 16:16:41,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 16:16:42,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 16:16:42,019 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 16:16:42,020 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618906513]
[2022-03-16 16:16:42,020 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618906513] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 16:16:42,020 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 16:16:42,020 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-03-16 16:16:42,020 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746550348]
[2022-03-16 16:16:42,020 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 16:16:42,021 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-03-16 16:16:42,021 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 16:16:42,021 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-03-16 16:16:42,022 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-03-16 16:16:42,022 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:16:42,022 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 16:16:42,022 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-03-16 16:16:42,022 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:16:42,022 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-03-16 16:16:42,023 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2022-03-16 16:16:42,023 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:18:17,397 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 25263 transitions and produced 25264 states.
[2022-03-16 16:18:17,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:18:17,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-03-16 16:18:17,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2022-03-16 16:18:17,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-03-16 16:18:17,398 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-03-16 16:18:17,398 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] ===
[2022-03-16 16:18:17,399 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 16:18:17,399 INFO  L85        PathProgramCache]: Analyzing trace with hash -1833319616, now seen corresponding path program 2 times
[2022-03-16 16:18:17,399 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 16:18:17,399 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057421694]
[2022-03-16 16:18:17,399 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 16:18:17,400 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 16:18:17,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 16:18:17,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 16:18:17,450 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 16:18:17,450 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057421694]
[2022-03-16 16:18:17,450 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057421694] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 16:18:17,450 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 16:18:17,450 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-16 16:18:17,450 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960548463]
[2022-03-16 16:18:17,451 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 16:18:17,451 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-16 16:18:17,451 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 16:18:17,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-16 16:18:17,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-16 16:18:17,452 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:18:17,452 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 16:18:17,453 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-03-16 16:18:17,453 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:18:17,453 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2022-03-16 16:18:17,453 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. 
[2022-03-16 16:18:17,453 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-03-16 16:18:17,453 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:19:28,972 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 22052 transitions and produced 22053 states.
[2022-03-16 16:19:28,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:19:28,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-03-16 16:19:28,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2022-03-16 16:19:28,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:19:28,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 16:19:28,974 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-03-16 16:19:28,974 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] ===
[2022-03-16 16:19:28,974 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 16:19:28,974 INFO  L85        PathProgramCache]: Analyzing trace with hash -1739080425, now seen corresponding path program 1 times
[2022-03-16 16:19:28,975 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 16:19:28,975 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593992458]
[2022-03-16 16:19:28,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 16:19:28,975 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 16:19:28,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 16:19:29,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 16:19:29,084 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 16:19:29,084 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593992458]
[2022-03-16 16:19:29,084 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593992458] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 16:19:29,084 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 16:19:29,084 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-03-16 16:19:29,084 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186449788]
[2022-03-16 16:19:29,084 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 16:19:29,085 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-03-16 16:19:29,085 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 16:19:29,085 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-03-16 16:19:29,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2022-03-16 16:19:29,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 16:19:29,086 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 16:19:29,086 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-03-16 16:19:29,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:19:29,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-03-16 16:19:29,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. 
[2022-03-16 16:19:29,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-03-16 16:19:29,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 16:19:29,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.