/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/bitvector/jain_5-2.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 01:53:35,418 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 01:53:35,421 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 01:53:35,476 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 01:53:35,484 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 01:53:35,486 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 01:53:35,489 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-11 01:53:35,491 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-11 01:53:35,493 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 01:53:35,497 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-11 01:53:35,499 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 01:53:35,499 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 01:53:35,501 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 01:53:35,502 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 01:53:35,504 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 01:53:35,505 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 01:53:35,505 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 01:53:35,507 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 01:53:35,514 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 01:53:35,515 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 01:53:35,516 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 01:53:35,517 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 01:53:35,517 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 01:53:35,522 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 01:53:35,522 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 01:53:35,522 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 01:53:35,523 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 01:53:35,523 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 01:53:35,524 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 01:53:35,524 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 01:53:35,524 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 01:53:35,525 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 01:53:35,526 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 01:53:35,527 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 01:53:35,527 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 01:53:35,527 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 01:53:35,528 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 01:53:35,528 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 01:53:35,528 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 01:53:35,529 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 01:53:35,529 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf
[2022-01-11 01:53:35,553 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 01:53:35,553 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 01:53:35,554 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 01:53:35,554 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 01:53:35,554 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 01:53:35,555 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 01:53:35,555 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 01:53:35,555 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 01:53:35,555 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 01:53:35,555 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 01:53:35,556 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 01:53:35,556 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 01:53:35,557 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 01:53:35,557 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 01:53:35,558 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 01:53:35,558 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_SUM
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 01:53:35,780 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 01:53:35,808 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 01:53:35,810 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 01:53:35,811 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 01:53:35,811 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 01:53:35,812 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_5-2.c
[2022-01-11 01:53:35,871 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a79e61802/05bc9e68791e4c138766b7de7237c313/FLAG692c04918
[2022-01-11 01:53:36,222 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 01:53:36,223 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c
[2022-01-11 01:53:36,230 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a79e61802/05bc9e68791e4c138766b7de7237c313/FLAG692c04918
[2022-01-11 01:53:36,240 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a79e61802/05bc9e68791e4c138766b7de7237c313
[2022-01-11 01:53:36,243 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 01:53:36,244 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 01:53:36,246 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 01:53:36,247 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 01:53:36,273 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 01:53:36,274 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,275 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13324132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36, skipping insertion in model container
[2022-01-11 01:53:36,275 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,280 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 01:53:36,288 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 01:53:36,405 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c[665,678]
[2022-01-11 01:53:36,418 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 01:53:36,429 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 01:53:36,438 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c[665,678]
[2022-01-11 01:53:36,441 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 01:53:36,450 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 01:53:36,451 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36 WrapperNode
[2022-01-11 01:53:36,451 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 01:53:36,452 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 01:53:36,452 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 01:53:36,452 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 01:53:36,457 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,462 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,473 INFO  L137                Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29
[2022-01-11 01:53:36,473 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 01:53:36,474 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 01:53:36,474 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 01:53:36,474 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 01:53:36,479 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,479 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,482 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,482 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,486 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,488 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,492 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,493 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 01:53:36,494 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 01:53:36,494 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 01:53:36,494 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 01:53:36,495 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,500 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 01:53:36,507 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 01:53:36,531 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)
[2022-01-11 01:53:36,547 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
[2022-01-11 01:53:36,570 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 01:53:36,570 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 01:53:36,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 01:53:36,571 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 01:53:36,612 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 01:53:36,613 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 01:53:36,685 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 01:53:36,689 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 01:53:36,689 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-11 01:53:36,690 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:53:36 BoogieIcfgContainer
[2022-01-11 01:53:36,691 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 01:53:36,691 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 01:53:36,691 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 01:53:36,692 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 01:53:36,694 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:53:36" (1/1) ...
[2022-01-11 01:53:36,747 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:53:36 BasicIcfg
[2022-01-11 01:53:36,747 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 01:53:36,749 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 01:53:36,749 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 01:53:36,751 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 01:53:36,751 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:53:36" (1/4) ...
[2022-01-11 01:53:36,752 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44411fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:53:36, skipping insertion in model container
[2022-01-11 01:53:36,752 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:53:36" (2/4) ...
[2022-01-11 01:53:36,752 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44411fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:53:36, skipping insertion in model container
[2022-01-11 01:53:36,752 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:53:36" (3/4) ...
[2022-01-11 01:53:36,752 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44411fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:53:36, skipping insertion in model container
[2022-01-11 01:53:36,752 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:53:36" (4/4) ...
[2022-01-11 01:53:36,753 INFO  L111   eAbstractionObserver]: Analyzing ICFG jain_5-2.cTransformedIcfg
[2022-01-11 01:53:36,758 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 01:53:36,758 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-11 01:53:36,793 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 01:53:36,801 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-01-11 01:53:36,801 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-11 01:53:36,809 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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)
[2022-01-11 01:53:36,812 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-01-11 01:53:36,812 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 01:53:36,813 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-01-11 01:53:36,813 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 01:53:36,816 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 01:53:36,817 INFO  L85        PathProgramCache]: Analyzing trace with hash 57292131, now seen corresponding path program 1 times
[2022-01-11 01:53:36,822 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 01:53:36,822 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94314302]
[2022-01-11 01:53:36,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 01:53:36,823 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 01:53:36,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 01:53:37,040 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:37,040 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 01:53:37,041 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94314302]
[2022-01-11 01:53:37,041 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94314302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 01:53:37,041 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 01:53:37,041 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-11 01:53:37,042 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668346211]
[2022-01-11 01:53:37,043 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 01:53:37,045 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-11 01:53:37,046 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 01:53:37,061 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-11 01:53:37,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-11 01:53:37,063 INFO  L87              Difference]: Start difference. First operand  has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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)
[2022-01-11 01:53:37,083 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 01:53:37,083 INFO  L93              Difference]: Finished difference Result 18 states and 26 transitions.
[2022-01-11 01:53:37,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-01-11 01:53:37,085 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5
[2022-01-11 01:53:37,085 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 01:53:37,089 INFO  L225             Difference]: With dead ends: 18
[2022-01-11 01:53:37,090 INFO  L226             Difference]: Without dead ends: 9
[2022-01-11 01:53:37,091 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-11 01:53:37,093 INFO  L933         BasicCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-11 01:53:37,094 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 01:53:37,104 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2022-01-11 01:53:37,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2022-01-11 01:53:37,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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)
[2022-01-11 01:53:37,112 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2022-01-11 01:53:37,113 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5
[2022-01-11 01:53:37,113 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 01:53:37,113 INFO  L470      AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2022-01-11 01:53:37,113 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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)
[2022-01-11 01:53:37,114 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2022-01-11 01:53:37,114 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-01-11 01:53:37,114 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 01:53:37,114 INFO  L514         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2022-01-11 01:53:37,114 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 01:53:37,114 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 01:53:37,115 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 01:53:37,115 INFO  L85        PathProgramCache]: Analyzing trace with hash 1688875041, now seen corresponding path program 1 times
[2022-01-11 01:53:37,115 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 01:53:37,115 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995926811]
[2022-01-11 01:53:37,115 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 01:53:37,116 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 01:53:37,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 01:53:37,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:37,189 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 01:53:37,189 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995926811]
[2022-01-11 01:53:37,189 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995926811] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-11 01:53:37,189 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783802558]
[2022-01-11 01:53:37,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 01:53:37,189 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 01:53:37,190 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 01:53:37,191 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 01:53:37,192 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-11 01:53:37,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 01:53:37,233 INFO  L263         TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-01-11 01:53:37,236 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 01:53:37,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:37,636 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-11 01:53:37,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:37,708 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [783802558] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-11 01:53:37,708 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-11 01:53:37,708 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8
[2022-01-11 01:53:37,708 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344297857]
[2022-01-11 01:53:37,709 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-11 01:53:37,709 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-01-11 01:53:37,709 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 01:53:37,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-01-11 01:53:37,710 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2022-01-11 01:53:37,710 INFO  L87              Difference]: Start difference. First operand 9 states and 9 transitions. Second operand  has 8 states, 8 states have (on average 2.125) 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)
[2022-01-11 01:53:37,790 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 01:53:37,790 INFO  L93              Difference]: Finished difference Result 20 states and 22 transitions.
[2022-01-11 01:53:37,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-01-11 01:53:37,791 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.125) 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 8
[2022-01-11 01:53:37,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 01:53:37,794 INFO  L225             Difference]: With dead ends: 20
[2022-01-11 01:53:37,794 INFO  L226             Difference]: Without dead ends: 18
[2022-01-11 01:53:37,794 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2022-01-11 01:53:37,795 INFO  L933         BasicCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-11 01:53:37,796 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 21 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 01:53:37,796 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2022-01-11 01:53:37,799 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2022-01-11 01:53:37,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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)
[2022-01-11 01:53:37,799 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions.
[2022-01-11 01:53:37,799 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8
[2022-01-11 01:53:37,800 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 01:53:37,800 INFO  L470      AbstractCegarLoop]: Abstraction has 18 states and 18 transitions.
[2022-01-11 01:53:37,800 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.125) 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)
[2022-01-11 01:53:37,800 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions.
[2022-01-11 01:53:37,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-11 01:53:37,803 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 01:53:37,803 INFO  L514         BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1]
[2022-01-11 01:53:37,820 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-01-11 01:53:38,019 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 01:53:38,019 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 01:53:38,020 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 01:53:38,020 INFO  L85        PathProgramCache]: Analyzing trace with hash 1683882979, now seen corresponding path program 2 times
[2022-01-11 01:53:38,020 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 01:53:38,021 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640057834]
[2022-01-11 01:53:38,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 01:53:38,022 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 01:53:38,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 01:53:38,179 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:38,179 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 01:53:38,180 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640057834]
[2022-01-11 01:53:38,180 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640057834] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-11 01:53:38,180 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830927775]
[2022-01-11 01:53:38,180 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-11 01:53:38,180 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 01:53:38,180 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 01:53:38,181 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 01:53:38,247 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-11 01:53:38,316 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-11 01:53:38,317 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-11 01:53:38,318 INFO  L263         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 29 conjunts are in the unsatisfiable core
[2022-01-11 01:53:38,319 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 01:53:47,189 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:47,189 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-11 01:53:47,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:47,433 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830927775] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-11 01:53:47,433 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-11 01:53:47,433 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17
[2022-01-11 01:53:47,433 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88582814]
[2022-01-11 01:53:47,433 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-11 01:53:47,433 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2022-01-11 01:53:47,433 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 01:53:47,434 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2022-01-11 01:53:47,434 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=205, Unknown=3, NotChecked=0, Total=272
[2022-01-11 01:53:47,434 INFO  L87              Difference]: Start difference. First operand 18 states and 18 transitions. Second operand  has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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)
[2022-01-11 01:53:50,870 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 01:53:50,870 INFO  L93              Difference]: Finished difference Result 35 states and 39 transitions.
[2022-01-11 01:53:50,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2022-01-11 01:53:50,871 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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) Word has length 17
[2022-01-11 01:53:50,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 01:53:50,872 INFO  L225             Difference]: With dead ends: 35
[2022-01-11 01:53:50,872 INFO  L226             Difference]: Without dead ends: 33
[2022-01-11 01:53:50,872 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=199, Invalid=554, Unknown=3, NotChecked=0, Total=756
[2022-01-11 01:53:50,873 INFO  L933         BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-11 01:53:50,874 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 9 Unchecked, 0.2s Time]
[2022-01-11 01:53:50,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-01-11 01:53:50,880 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2022-01-11 01:53:50,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33 states, 32 states have (on average 1.03125) internal successors, (33), 32 states have internal predecessors, (33), 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)
[2022-01-11 01:53:50,882 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions.
[2022-01-11 01:53:50,882 INFO  L78                 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 17
[2022-01-11 01:53:50,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 01:53:50,882 INFO  L470      AbstractCegarLoop]: Abstraction has 33 states and 33 transitions.
[2022-01-11 01:53:50,882 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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)
[2022-01-11 01:53:50,882 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions.
[2022-01-11 01:53:50,883 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2022-01-11 01:53:50,883 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 01:53:50,883 INFO  L514         BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1]
[2022-01-11 01:53:50,901 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-01-11 01:53:51,095 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-01-11 01:53:51,096 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 01:53:51,096 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 01:53:51,096 INFO  L85        PathProgramCache]: Analyzing trace with hash 1020998433, now seen corresponding path program 3 times
[2022-01-11 01:53:51,096 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 01:53:51,096 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623360231]
[2022-01-11 01:53:51,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 01:53:51,097 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 01:53:51,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 01:53:51,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 01:53:51,418 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 01:53:51,418 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623360231]
[2022-01-11 01:53:51,418 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623360231] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-11 01:53:51,418 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475533610]
[2022-01-11 01:53:51,418 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-01-11 01:53:51,418 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 01:53:51,427 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 01:53:51,443 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 01:53:51,444 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-11 01:53:54,990 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s)
[2022-01-11 01:53:54,990 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-11 01:53:55,000 INFO  L263         TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 100 conjunts are in the unsatisfiable core
[2022-01-11 01:53:55,003 INFO  L286         TraceCheckSpWp]: Computing forward predicates...