/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_BITWISE.epf -i ../../../trunk/examples/svcomp/loop-lit/bhmr2007.i


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 08:36:41,257 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 08:36:41,259 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 08:36:41,312 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 08:36:41,313 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 08:36:41,324 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 08:36:41,327 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 08:36:41,332 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 08:36:41,341 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 08:36:41,343 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 08:36:41,344 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 08:36:41,345 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 08:36:41,345 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 08:36:41,346 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 08:36:41,350 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 08:36:41,351 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 08:36:41,351 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 08:36:41,352 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 08:36:41,354 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 08:36:41,355 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 08:36:41,357 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 08:36:41,357 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 08:36:41,358 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 08:36:41,360 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 08:36:41,360 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 08:36:41,360 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 08:36:41,361 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 08:36:41,361 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 08:36:41,362 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 08:36:41,362 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 08:36:41,363 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 08:36:41,363 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 08:36:41,364 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 08:36:41,364 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 08:36:41,365 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 08:36:41,365 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 08:36:41,365 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 08:36:41,365 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 08:36:41,367 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 08:36:41,374 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf
[2022-01-10 08:36:41,401 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 08:36:41,401 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 08:36:41,402 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 08:36:41,402 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 08:36:41,403 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 08:36:41,403 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 08:36:41,403 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 08:36:41,404 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 08:36:41,404 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 08:36:41,404 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 08:36:41,405 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 08:36:41,406 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 08:36:41,406 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 08:36:41,406 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 08:36:41,406 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 08:36:41,406 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 08:36:41,406 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 08:36:41,406 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 08:36:41,406 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 08:36:41,407 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 08:36:41,407 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 08:36:41,407 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 08:36:41,407 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 08:36:41,407 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 08:36:41,407 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 08:36:41,409 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 08:36:41,409 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_BITWISE
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 08:36:41,649 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 08:36:41,671 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 08:36:41,673 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 08:36:41,674 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 08:36:41,674 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 08:36:41,675 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/bhmr2007.i
[2022-01-10 08:36:41,717 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35119ec1/14033c968f174122bec973d5ac6dc902/FLAG5bbb0c5b4
[2022-01-10 08:36:42,089 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 08:36:42,090 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/bhmr2007.i
[2022-01-10 08:36:42,095 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35119ec1/14033c968f174122bec973d5ac6dc902/FLAG5bbb0c5b4
[2022-01-10 08:36:42,489 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35119ec1/14033c968f174122bec973d5ac6dc902
[2022-01-10 08:36:42,491 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 08:36:42,492 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 08:36:42,493 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 08:36:42,494 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 08:36:42,496 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 08:36:42,496 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,497 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1bed58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42, skipping insertion in model container
[2022-01-10 08:36:42,497 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,502 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 08:36:42,514 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 08:36:42,725 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/bhmr2007.i[895,908]
[2022-01-10 08:36:42,740 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 08:36:42,749 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 08:36:42,761 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/bhmr2007.i[895,908]
[2022-01-10 08:36:42,769 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 08:36:42,783 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 08:36:42,784 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42 WrapperNode
[2022-01-10 08:36:42,784 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 08:36:42,785 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 08:36:42,785 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 08:36:42,785 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 08:36:42,791 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,799 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,814 INFO  L137                Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42
[2022-01-10 08:36:42,814 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 08:36:42,815 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 08:36:42,815 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 08:36:42,815 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 08:36:42,822 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,822 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,831 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,832 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,842 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,845 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,846 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,847 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 08:36:42,848 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 08:36:42,848 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 08:36:42,848 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 08:36:42,854 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (1/1) ...
[2022-01-10 08:36:42,859 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 08:36:42,869 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:36:42,889 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)
[2022-01-10 08:36:42,909 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
[2022-01-10 08:36:42,937 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 08:36:42,937 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 08:36:42,937 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 08:36:42,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 08:36:42,989 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 08:36:42,990 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 08:36:43,122 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 08:36:43,127 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 08:36:43,127 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 08:36:43,129 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:36:43 BoogieIcfgContainer
[2022-01-10 08:36:43,129 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 08:36:43,130 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 08:36:43,130 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 08:36:43,131 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 08:36:43,134 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:36:43" (1/1) ...
[2022-01-10 08:36:43,196 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:36:43 BasicIcfg
[2022-01-10 08:36:43,196 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 08:36:43,198 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 08:36:43,198 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 08:36:43,200 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 08:36:43,200 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:36:42" (1/4) ...
[2022-01-10 08:36:43,201 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119b90e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:36:43, skipping insertion in model container
[2022-01-10 08:36:43,201 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:42" (2/4) ...
[2022-01-10 08:36:43,201 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119b90e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:36:43, skipping insertion in model container
[2022-01-10 08:36:43,201 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:36:43" (3/4) ...
[2022-01-10 08:36:43,202 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119b90e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:36:43, skipping insertion in model container
[2022-01-10 08:36:43,202 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:36:43" (4/4) ...
[2022-01-10 08:36:43,202 INFO  L111   eAbstractionObserver]: Analyzing ICFG bhmr2007.iTransformedIcfg
[2022-01-10 08:36:43,206 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 08:36:43,207 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 08:36:43,279 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 08:36:43,287 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
[2022-01-10 08:36:43,287 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 08:36:43,300 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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)
[2022-01-10 08:36:43,304 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-01-10 08:36:43,304 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:36:43,304 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:36:43,305 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:36:43,314 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:36:43,314 INFO  L85        PathProgramCache]: Analyzing trace with hash 1637351921, now seen corresponding path program 1 times
[2022-01-10 08:36:43,321 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:36:43,322 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488221497]
[2022-01-10 08:36:43,323 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:43,323 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:36:43,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:43,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:36:43,846 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:36:43,846 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488221497]
[2022-01-10 08:36:43,847 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488221497] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:36:43,847 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:36:43,847 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-01-10 08:36:43,849 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853023367]
[2022-01-10 08:36:43,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:36:43,852 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-10 08:36:43,853 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:36:43,873 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-10 08:36:43,874 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-01-10 08:36:43,876 INFO  L87              Difference]: Start difference. First operand  has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) Second operand  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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)
[2022-01-10 08:36:44,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:36:44,065 INFO  L93              Difference]: Finished difference Result 33 states and 39 transitions.
[2022-01-10 08:36:44,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-01-10 08:36:44,067 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2022-01-10 08:36:44,067 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:36:44,073 INFO  L225             Difference]: With dead ends: 33
[2022-01-10 08:36:44,073 INFO  L226             Difference]: Without dead ends: 12
[2022-01-10 08:36:44,075 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2022-01-10 08:36:44,078 INFO  L933         BasicCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 08:36:44,079 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 08:36:44,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2022-01-10 08:36:44,100 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11.
[2022-01-10 08:36:44,101 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 08:36:44,101 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions.
[2022-01-10 08:36:44,102 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7
[2022-01-10 08:36:44,102 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:36:44,103 INFO  L470      AbstractCegarLoop]: Abstraction has 11 states and 12 transitions.
[2022-01-10 08:36:44,103 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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)
[2022-01-10 08:36:44,103 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions.
[2022-01-10 08:36:44,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-01-10 08:36:44,103 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:36:44,104 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:36:44,104 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 08:36:44,104 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:36:44,105 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:36:44,105 INFO  L85        PathProgramCache]: Analyzing trace with hash 1325260336, now seen corresponding path program 1 times
[2022-01-10 08:36:44,105 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:36:44,105 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621654647]
[2022-01-10 08:36:44,105 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:44,105 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:36:44,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:44,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:36:44,638 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:36:44,638 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621654647]
[2022-01-10 08:36:44,639 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621654647] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 08:36:44,639 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204718944]
[2022-01-10 08:36:44,639 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:44,639 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 08:36:44,640 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:36:44,644 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)
[2022-01-10 08:36:44,645 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-10 08:36:44,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:44,747 INFO  L263         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 22 conjunts are in the unsatisfiable core
[2022-01-10 08:36:44,751 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 08:36:45,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:36:45,219 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 08:36:56,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:36:56,434 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204718944] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 08:36:56,434 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 08:36:56,434 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 19
[2022-01-10 08:36:56,435 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439934481]
[2022-01-10 08:36:56,435 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 08:36:56,435 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2022-01-10 08:36:56,435 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:36:56,436 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2022-01-10 08:36:56,436 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=264, Unknown=1, NotChecked=0, Total=342
[2022-01-10 08:36:56,437 INFO  L87              Difference]: Start difference. First operand 11 states and 12 transitions. Second operand  has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 08:36:58,545 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:36:58,545 INFO  L93              Difference]: Finished difference Result 24 states and 29 transitions.
[2022-01-10 08:36:58,546 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2022-01-10 08:36:58,547 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2022-01-10 08:36:58,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:36:58,547 INFO  L225             Difference]: With dead ends: 24
[2022-01-10 08:36:58,547 INFO  L226             Difference]: Without dead ends: 18
[2022-01-10 08:36:58,549 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=140, Invalid=459, Unknown=1, NotChecked=0, Total=600
[2022-01-10 08:36:58,550 INFO  L933         BasicCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-01-10 08:36:58,550 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 34 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 12 Unchecked, 0.8s Time]
[2022-01-10 08:36:58,551 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2022-01-10 08:36:58,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17.
[2022-01-10 08:36:58,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 08:36:58,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions.
[2022-01-10 08:36:58,559 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10
[2022-01-10 08:36:58,559 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:36:58,559 INFO  L470      AbstractCegarLoop]: Abstraction has 17 states and 20 transitions.
[2022-01-10 08:36:58,559 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 08:36:58,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions.
[2022-01-10 08:36:58,561 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-01-10 08:36:58,561 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:36:58,562 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:36:58,569 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-01-10 08:36:58,767 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
[2022-01-10 08:36:58,767 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:36:58,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:36:58,768 INFO  L85        PathProgramCache]: Analyzing trace with hash 601592978, now seen corresponding path program 1 times
[2022-01-10 08:36:58,768 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:36:58,768 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546164630]
[2022-01-10 08:36:58,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:58,768 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:36:58,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:37:01,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:37:01,299 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:37:01,299 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546164630]
[2022-01-10 08:37:01,299 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546164630] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 08:37:01,299 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590823399]
[2022-01-10 08:37:01,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:37:01,300 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 08:37:01,300 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:37:01,301 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)
[2022-01-10 08:37:01,303 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-10 08:37:01,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:37:01,405 INFO  L263         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 36 conjunts are in the unsatisfiable core
[2022-01-10 08:37:01,407 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 08:37:02,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:37:02,101 INFO  L328         TraceCheckSpWp]: Computing backward predicates...