/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-invgen/id_build.i.p+nlh-reducer.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 08:35:28,087 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 08:35:28,089 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-01-10 08:35:28,145 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 08:35:28,147 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 08:35:28,154 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-01-10 08:35:28,158 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 08:35:28,158 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 08:35:28,159 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 08:35:28,163 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 08:35:28,163 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 08:35:28,166 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 08:35:28,169 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 08:35:28,171 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 08:35:28,171 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 08:35:28,173 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 08:35:28,174 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 08:35:28,174 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 08:35:28,176 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-01-10 08:35:28,176 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 08:35:28,176 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 08:35:28,177 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 08:35:28,177 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 08:35:28,177 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 08:35:28,178 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 08:35:28,178 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 08:35:28,178 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 08:35:28,194 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 08:35:28,195 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2022-01-10 08:35:28,196 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 08:35:28,197 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 08:35:28,198 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 08:35:28,235 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 08:35:28,235 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 08:35:28,236 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 08:35:28,236 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 08:35:28,237 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 08:35:28,237 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 08:35:28,237 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 08:35:28,237 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 08:35:28,237 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 08:35:28,237 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 08:35:28,238 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 08:35:28,238 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 08:35:28,239 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 08:35:28,239 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 08:35:28,240 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 08:35:28,240 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 08:35:28,240 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 08:35:28,385 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 08:35:28,403 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 08:35:28,405 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 08:35:28,406 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 08:35:28,407 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 08:35:28,407 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+nlh-reducer.c
[2022-01-10 08:35:28,476 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/893a8a7e8/6ed30284befc4977be5cbb35ddb3d232/FLAG2ee1b5a5c
[2022-01-10 08:35:28,864 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 08:35:28,865 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+nlh-reducer.c
[2022-01-10 08:35:28,874 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/893a8a7e8/6ed30284befc4977be5cbb35ddb3d232/FLAG2ee1b5a5c
[2022-01-10 08:35:28,894 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/893a8a7e8/6ed30284befc4977be5cbb35ddb3d232
[2022-01-10 08:35:28,896 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 08:35:28,896 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 08:35:28,897 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 08:35:28,897 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 08:35:28,899 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 08:35:28,900 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:35:28" (1/1) ...
[2022-01-10 08:35:28,900 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f079763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:28, skipping insertion in model container
[2022-01-10 08:35:28,900 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:35:28" (1/1) ...
[2022-01-10 08:35:28,904 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 08:35:28,995 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 08:35:29,300 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-invgen/id_build.i.p+nlh-reducer.c[32736,32749]
[2022-01-10 08:35:29,305 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-invgen/id_build.i.p+nlh-reducer.c[33038,33051]
[2022-01-10 08:35:29,332 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 08:35:29,339 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 08:35:29,477 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-invgen/id_build.i.p+nlh-reducer.c[32736,32749]
[2022-01-10 08:35:29,480 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-invgen/id_build.i.p+nlh-reducer.c[33038,33051]
[2022-01-10 08:35:29,510 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 08:35:29,519 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 08:35:29,521 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29 WrapperNode
[2022-01-10 08:35:29,522 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 08:35:29,523 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 08:35:29,523 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 08:35:29,523 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 08:35:29,528 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,552 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,601 INFO  L137                Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1403
[2022-01-10 08:35:29,602 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 08:35:29,602 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 08:35:29,602 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 08:35:29,603 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 08:35:29,625 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,625 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,633 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,634 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,648 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,654 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,656 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,661 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 08:35:29,662 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 08:35:29,662 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 08:35:29,662 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 08:35:29,662 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,667 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 08:35:29,675 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:35:29,685 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 08:35:29,705 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 08:35:29,733 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 08:35:29,733 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 08:35:29,733 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 08:35:29,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 08:35:29,888 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 08:35:29,889 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 08:35:31,051 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 08:35:31,059 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 08:35:31,059 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-01-10 08:35:31,061 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:35:31 BoogieIcfgContainer
[2022-01-10 08:35:31,061 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 08:35:31,061 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 08:35:31,061 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 08:35:31,062 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 08:35:31,064 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:35:31" (1/1) ...
[2022-01-10 08:35:31,278 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:35:31 BasicIcfg
[2022-01-10 08:35:31,278 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 08:35:31,279 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 08:35:31,279 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 08:35:31,281 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 08:35:31,281 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:35:28" (1/4) ...
[2022-01-10 08:35:31,282 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f38149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:35:31, skipping insertion in model container
[2022-01-10 08:35:31,282 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (2/4) ...
[2022-01-10 08:35:31,282 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f38149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:35:31, skipping insertion in model container
[2022-01-10 08:35:31,282 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:35:31" (3/4) ...
[2022-01-10 08:35:31,282 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f38149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:35:31, skipping insertion in model container
[2022-01-10 08:35:31,282 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:35:31" (4/4) ...
[2022-01-10 08:35:31,283 INFO  L111   eAbstractionObserver]: Analyzing ICFG id_build.i.p+nlh-reducer.cTransformedIcfg
[2022-01-10 08:35:31,286 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 08:35:31,286 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-01-10 08:35:31,312 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 08:35:31,317 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 08:35:31,317 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-01-10 08:35:31,329 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 251 states, 248 states have (on average 1.9596774193548387) internal successors, (486), 250 states have internal predecessors, (486), 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 08:35:31,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2022-01-10 08:35:31,339 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:31,339 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:35:31,340 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:31,346 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:31,346 INFO  L85        PathProgramCache]: Analyzing trace with hash -687598878, now seen corresponding path program 1 times
[2022-01-10 08:35:31,351 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:31,352 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59629216]
[2022-01-10 08:35:31,352 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:31,353 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:31,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:32,178 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 08:35:32,178 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:32,178 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59629216]
[2022-01-10 08:35:32,179 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59629216] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:32,179 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:32,179 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:32,180 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542675100]
[2022-01-10 08:35:32,180 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:32,183 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:32,183 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:32,201 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:32,201 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:32,205 INFO  L87              Difference]: Start difference. First operand  has 251 states, 248 states have (on average 1.9596774193548387) internal successors, (486), 250 states have internal predecessors, (486), 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 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 08:35:33,541 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:35:42,606 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:35:44,771 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:35:44,771 INFO  L93              Difference]: Finished difference Result 281 states and 518 transitions.
[2022-01-10 08:35:44,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:35:44,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 137
[2022-01-10 08:35:44,774 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:35:44,780 INFO  L225             Difference]: With dead ends: 281
[2022-01-10 08:35:44,780 INFO  L226             Difference]: Without dead ends: 264
[2022-01-10 08:35:44,782 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:35:44,784 INFO  L933         BasicCegarLoop]: 491 mSDtfsCounter, 42 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time
[2022-01-10 08:35:44,784 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 1602 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time]
[2022-01-10 08:35:44,795 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2022-01-10 08:35:44,826 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 253.
[2022-01-10 08:35:44,828 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 253 states, 251 states have (on average 1.1633466135458168) internal successors, (292), 252 states have internal predecessors, (292), 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 08:35:44,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 292 transitions.
[2022-01-10 08:35:44,832 INFO  L78                 Accepts]: Start accepts. Automaton has 253 states and 292 transitions. Word has length 137
[2022-01-10 08:35:44,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:35:44,834 INFO  L470      AbstractCegarLoop]: Abstraction has 253 states and 292 transitions.
[2022-01-10 08:35:44,835 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 08:35:44,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 253 states and 292 transitions.
[2022-01-10 08:35:44,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2022-01-10 08:35:44,842 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:44,842 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:35:44,842 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 08:35:44,842 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:44,843 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:44,843 INFO  L85        PathProgramCache]: Analyzing trace with hash -1405722425, now seen corresponding path program 1 times
[2022-01-10 08:35:44,843 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:44,843 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583045292]
[2022-01-10 08:35:44,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:44,843 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:45,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:45,139 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 08:35:45,139 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:45,139 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583045292]
[2022-01-10 08:35:45,139 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583045292] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:45,140 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:45,140 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:45,140 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223375890]
[2022-01-10 08:35:45,140 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:45,141 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:45,141 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:45,141 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:45,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:45,142 INFO  L87              Difference]: Start difference. First operand 253 states and 292 transitions. Second operand  has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 08:35:49,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:35:49,488 INFO  L93              Difference]: Finished difference Result 270 states and 313 transitions.
[2022-01-10 08:35:49,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:35:49,488 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 139
[2022-01-10 08:35:49,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:35:49,490 INFO  L225             Difference]: With dead ends: 270
[2022-01-10 08:35:49,490 INFO  L226             Difference]: Without dead ends: 268
[2022-01-10 08:35:49,490 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:35:49,491 INFO  L933         BasicCegarLoop]: 274 mSDtfsCounter, 43 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2022-01-10 08:35:49,491 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 773 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2022-01-10 08:35:49,492 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2022-01-10 08:35:49,498 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 258.
[2022-01-10 08:35:49,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 258 states, 256 states have (on average 1.16796875) internal successors, (299), 257 states have internal predecessors, (299), 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 08:35:49,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions.
[2022-01-10 08:35:49,499 INFO  L78                 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 139
[2022-01-10 08:35:49,503 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:35:49,503 INFO  L470      AbstractCegarLoop]: Abstraction has 258 states and 299 transitions.
[2022-01-10 08:35:49,503 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 08:35:49,505 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions.
[2022-01-10 08:35:49,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2022-01-10 08:35:49,515 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:49,516 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:35:49,516 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 08:35:49,516 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:49,516 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:49,517 INFO  L85        PathProgramCache]: Analyzing trace with hash -1556573864, now seen corresponding path program 1 times
[2022-01-10 08:35:49,517 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:49,517 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093433174]
[2022-01-10 08:35:49,517 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:49,517 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:49,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:49,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:35:49,832 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:49,832 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093433174]
[2022-01-10 08:35:49,832 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093433174] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:49,832 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:49,832 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:49,832 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090404020]
[2022-01-10 08:35:49,833 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:49,833 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:49,833 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:49,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:49,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:49,834 INFO  L87              Difference]: Start difference. First operand 258 states and 299 transitions. Second operand  has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 08:35:51,896 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:35:57,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:35:57,667 INFO  L93              Difference]: Finished difference Result 268 states and 311 transitions.
[2022-01-10 08:35:57,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:35:57,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 140
[2022-01-10 08:35:57,668 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:35:57,669 INFO  L225             Difference]: With dead ends: 268
[2022-01-10 08:35:57,669 INFO  L226             Difference]: Without dead ends: 266
[2022-01-10 08:35:57,670 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:35:57,670 INFO  L933         BasicCegarLoop]: 260 mSDtfsCounter, 81 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time
[2022-01-10 08:35:57,671 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 696 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time]
[2022-01-10 08:35:57,671 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2022-01-10 08:35:57,678 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 258.
[2022-01-10 08:35:57,678 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 258 states, 256 states have (on average 1.1640625) internal successors, (298), 257 states have internal predecessors, (298), 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 08:35:57,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions.
[2022-01-10 08:35:57,679 INFO  L78                 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 140
[2022-01-10 08:35:57,679 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:35:57,679 INFO  L470      AbstractCegarLoop]: Abstraction has 258 states and 298 transitions.
[2022-01-10 08:35:57,679 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 08:35:57,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions.
[2022-01-10 08:35:57,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-01-10 08:35:57,680 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:57,680 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:35:57,680 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-10 08:35:57,680 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:57,681 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:57,681 INFO  L85        PathProgramCache]: Analyzing trace with hash 2015517883, now seen corresponding path program 1 times
[2022-01-10 08:35:57,681 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:57,681 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432505719]
[2022-01-10 08:35:57,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:57,681 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:57,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:57,921 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 08:35:57,921 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:57,921 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432505719]
[2022-01-10 08:35:57,923 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432505719] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:57,924 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:57,924 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:57,924 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212949978]
[2022-01-10 08:35:57,924 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:57,926 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:57,926 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:57,927 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:57,927 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:57,927 INFO  L87              Difference]: Start difference. First operand 258 states and 298 transitions. Second operand  has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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 08:36:03,988 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:36:13,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:36:13,265 INFO  L93              Difference]: Finished difference Result 271 states and 312 transitions.
[2022-01-10 08:36:13,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:36:13,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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 141
[2022-01-10 08:36:13,267 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:36:13,267 INFO  L225             Difference]: With dead ends: 271
[2022-01-10 08:36:13,267 INFO  L226             Difference]: Without dead ends: 269
[2022-01-10 08:36:13,268 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:36:13,268 INFO  L933         BasicCegarLoop]: 288 mSDtfsCounter, 21 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time
[2022-01-10 08:36:13,269 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 800 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time]
[2022-01-10 08:36:13,269 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2022-01-10 08:36:13,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 253.
[2022-01-10 08:36:13,273 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 253 states, 251 states have (on average 1.159362549800797) internal successors, (291), 252 states have internal predecessors, (291), 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 08:36:13,274 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 291 transitions.
[2022-01-10 08:36:13,274 INFO  L78                 Accepts]: Start accepts. Automaton has 253 states and 291 transitions. Word has length 141
[2022-01-10 08:36:13,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:36:13,274 INFO  L470      AbstractCegarLoop]: Abstraction has 253 states and 291 transitions.
[2022-01-10 08:36:13,274 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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 08:36:13,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 253 states and 291 transitions.
[2022-01-10 08:36:13,289 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-01-10 08:36:13,289 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:36:13,289 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 08:36:13,289 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-01-10 08:36:13,289 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:36:13,290 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:36:13,290 INFO  L85        PathProgramCache]: Analyzing trace with hash 2016479108, now seen corresponding path program 1 times
[2022-01-10 08:36:13,290 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:36:13,290 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642012845]
[2022-01-10 08:36:13,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:13,291 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:36:13,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:14,175 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 08:36:14,176 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:36:14,176 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642012845]
[2022-01-10 08:36:14,176 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642012845] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 08:36:14,176 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882316785]
[2022-01-10 08:36:14,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:14,176 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 08:36:14,176 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:36:14,178 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 08:36:14,179 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 08:36:15,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:15,035 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 52 conjunts are in the unsatisfiable core
[2022-01-10 08:36:15,042 INFO  L286         TraceCheckSpWp]: Computing forward predicates...