/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_LAZY.epf -i ../../../trunk/examples/svcomp/float-benchs/divmul_diverge.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 17:38:06,089 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 17:38:06,091 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 17:38:06,161 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 17:38:06,162 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 17:38:06,164 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 17:38:06,166 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-01-10 17:38:06,170 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 17:38:06,173 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 17:38:06,175 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 17:38:06,175 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 17:38:06,176 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 17:38:06,177 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 17:38:06,180 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 17:38:06,180 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 17:38:06,181 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 17:38:06,182 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 17:38:06,186 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 17:38:06,187 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 17:38:06,188 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 17:38:06,189 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 17:38:06,190 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 17:38:06,194 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 17:38:06,195 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 17:38:06,195 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 17:38:06,196 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 17:38:06,196 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 17:38:06,197 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 17:38:06,197 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 17:38:06,197 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 17:38:06,198 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 17:38:06,199 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 17:38:06,200 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 17:38:06,200 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 17:38:06,200 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 17:38:06,200 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 17:38:06,201 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 17:38:06,201 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 17:38:06,201 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 17:38:06,202 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf
[2022-01-10 17:38:06,225 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 17:38:06,226 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 17:38:06,226 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 17:38:06,226 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 17:38:06,227 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 17:38:06,227 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 17:38:06,227 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 17:38:06,227 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 17:38:06,227 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 17:38:06,227 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 17:38:06,228 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 17:38:06,228 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 17:38:06,228 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 17:38:06,228 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 17:38:06,228 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 17:38:06,228 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 17:38:06,229 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 17:38:06,229 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 17:38:06,229 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 17:38:06,230 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 17:38:06,230 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 17:38:06,230 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 17:38:06,230 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 17:38:06,231 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 17:38:06,231 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_LAZY
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 17:38:06,430 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 17:38:06,446 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 17:38:06,447 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 17:38:06,448 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 17:38:06,448 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 17:38:06,449 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/divmul_diverge.c
[2022-01-10 17:38:06,487 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4bc4569/f5467704c74d47e9b38fe1dd5bd2be6a/FLAGc04cdf99b
[2022-01-10 17:38:06,844 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 17:38:06,844 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/divmul_diverge.c
[2022-01-10 17:38:06,852 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4bc4569/f5467704c74d47e9b38fe1dd5bd2be6a/FLAGc04cdf99b
[2022-01-10 17:38:06,868 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4bc4569/f5467704c74d47e9b38fe1dd5bd2be6a
[2022-01-10 17:38:06,870 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 17:38:06,872 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 17:38:06,874 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 17:38:06,875 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 17:38:06,878 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 17:38:06,878 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:38:06" (1/1) ...
[2022-01-10 17:38:06,879 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc21751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:06, skipping insertion in model container
[2022-01-10 17:38:06,880 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:38:06" (1/1) ...
[2022-01-10 17:38:06,884 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 17:38:06,894 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 17:38:07,047 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/divmul_diverge.c[613,626]
[2022-01-10 17:38:07,063 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 17:38:07,072 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 17:38:07,083 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/divmul_diverge.c[613,626]
[2022-01-10 17:38:07,088 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 17:38:07,102 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 17:38:07,102 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07 WrapperNode
[2022-01-10 17:38:07,103 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 17:38:07,104 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 17:38:07,104 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 17:38:07,104 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 17:38:07,109 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,115 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,130 INFO  L137                Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43
[2022-01-10 17:38:07,130 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 17:38:07,131 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 17:38:07,131 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 17:38:07,131 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 17:38:07,136 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,136 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,145 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,145 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,150 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,157 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,158 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,159 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 17:38:07,160 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 17:38:07,160 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 17:38:07,160 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 17:38:07,172 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,177 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 17:38:07,186 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 17:38:07,196 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 17:38:07,219 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 17:38:07,230 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 17:38:07,230 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 17:38:07,230 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 17:38:07,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 17:38:07,280 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 17:38:07,281 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 17:38:07,422 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 17:38:07,426 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 17:38:07,426 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 17:38:07,427 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:07 BoogieIcfgContainer
[2022-01-10 17:38:07,428 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 17:38:07,428 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 17:38:07,428 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 17:38:07,444 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 17:38:07,446 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:07" (1/1) ...
[2022-01-10 17:38:07,479 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:38:07 BasicIcfg
[2022-01-10 17:38:07,479 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 17:38:07,480 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 17:38:07,480 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 17:38:07,482 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 17:38:07,482 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:38:06" (1/4) ...
[2022-01-10 17:38:07,483 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e014581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:38:07, skipping insertion in model container
[2022-01-10 17:38:07,483 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:07" (2/4) ...
[2022-01-10 17:38:07,483 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e014581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:38:07, skipping insertion in model container
[2022-01-10 17:38:07,483 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:07" (3/4) ...
[2022-01-10 17:38:07,483 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e014581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:38:07, skipping insertion in model container
[2022-01-10 17:38:07,483 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:38:07" (4/4) ...
[2022-01-10 17:38:07,484 INFO  L111   eAbstractionObserver]: Analyzing ICFG divmul_diverge.cTransformedIcfg
[2022-01-10 17:38:07,487 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 17:38:07,488 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 17:38:07,545 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 17:38:07,552 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 17:38:07,552 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 17:38:07,567 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 17:38:07,570 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-01-10 17:38:07,571 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 17:38:07,571 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-01-10 17:38:07,572 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 17:38:07,575 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 17:38:07,575 INFO  L85        PathProgramCache]: Analyzing trace with hash -2016053014, now seen corresponding path program 1 times
[2022-01-10 17:38:07,581 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 17:38:07,581 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539532842]
[2022-01-10 17:38:07,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 17:38:07,582 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 17:38:07,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 17:38:07,703 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 17:38:07,704 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 17:38:07,704 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539532842]
[2022-01-10 17:38:07,705 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539532842] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 17:38:07,705 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 17:38:07,705 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 17:38:07,706 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287111601]
[2022-01-10 17:38:07,707 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 17:38:07,710 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 17:38:07,711 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 17:38:07,731 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 17:38:07,733 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 17:38:07,734 INFO  L87              Difference]: Start difference. First operand  has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 17:38:07,748 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 17:38:07,748 INFO  L93              Difference]: Finished difference Result 32 states and 40 transitions.
[2022-01-10 17:38:07,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 17:38:07,749 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2022-01-10 17:38:07,750 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 17:38:07,757 INFO  L225             Difference]: With dead ends: 32
[2022-01-10 17:38:07,757 INFO  L226             Difference]: Without dead ends: 13
[2022-01-10 17:38:07,759 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 17:38:07,762 INFO  L933         BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 17:38:07,763 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 17:38:07,773 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2022-01-10 17:38:07,781 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2022-01-10 17:38:07,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 17:38:07,783 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions.
[2022-01-10 17:38:07,784 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6
[2022-01-10 17:38:07,784 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 17:38:07,784 INFO  L470      AbstractCegarLoop]: Abstraction has 13 states and 14 transitions.
[2022-01-10 17:38:07,785 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 17:38:07,786 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions.
[2022-01-10 17:38:07,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-01-10 17:38:07,786 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 17:38:07,787 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-01-10 17:38:07,788 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 17:38:07,788 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 17:38:07,789 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 17:38:07,789 INFO  L85        PathProgramCache]: Analyzing trace with hash -2016023223, now seen corresponding path program 1 times
[2022-01-10 17:38:07,789 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 17:38:07,790 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745648889]
[2022-01-10 17:38:07,790 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 17:38:07,790 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 17:38:07,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 17:38:07,883 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 17:38:07,884 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 17:38:07,884 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745648889]
[2022-01-10 17:38:07,884 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745648889] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 17:38:07,884 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 17:38:07,884 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 17:38:07,884 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779425761]
[2022-01-10 17:38:07,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 17:38:07,885 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 17:38:07,886 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 17:38:07,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 17:38:07,886 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 17:38:07,886 INFO  L87              Difference]: Start difference. First operand 13 states and 14 transitions. Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:38:07,897 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 17:38:07,897 INFO  L93              Difference]: Finished difference Result 24 states and 26 transitions.
[2022-01-10 17:38:07,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 17:38:07,898 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2022-01-10 17:38:07,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 17:38:07,898 INFO  L225             Difference]: With dead ends: 24
[2022-01-10 17:38:07,898 INFO  L226             Difference]: Without dead ends: 20
[2022-01-10 17:38:07,899 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 17:38:07,899 INFO  L933         BasicCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 17:38:07,900 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 17:38:07,900 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2022-01-10 17:38:07,902 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 14.
[2022-01-10 17:38:07,903 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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 17:38:07,903 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions.
[2022-01-10 17:38:07,903 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 6
[2022-01-10 17:38:07,903 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 17:38:07,903 INFO  L470      AbstractCegarLoop]: Abstraction has 14 states and 15 transitions.
[2022-01-10 17:38:07,904 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:38:07,904 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions.
[2022-01-10 17:38:07,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-01-10 17:38:07,904 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 17:38:07,904 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 17:38:07,904 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 17:38:07,905 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 17:38:07,905 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 17:38:07,905 INFO  L85        PathProgramCache]: Analyzing trace with hash 1083483263, now seen corresponding path program 1 times
[2022-01-10 17:38:07,905 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 17:38:07,905 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395775799]
[2022-01-10 17:38:07,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 17:38:07,905 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 17:38:07,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 17:38:07,991 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 17:38:07,991 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 17:38:07,991 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395775799]
[2022-01-10 17:38:07,992 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395775799] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 17:38:07,992 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253770143]
[2022-01-10 17:38:07,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 17:38:07,992 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 17:38:07,992 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 17:38:08,016 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 17:38:08,047 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 17:38:08,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 17:38:08,062 INFO  L263         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-01-10 17:38:08,065 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 17:38:08,193 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 17:38:08,193 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 17:38:08,272 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 17:38:08,272 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253770143] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 17:38:08,272 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 17:38:08,273 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2022-01-10 17:38:08,273 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040312652]
[2022-01-10 17:38:08,273 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 17:38:08,273 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-01-10 17:38:08,273 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 17:38:08,274 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-01-10 17:38:08,274 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-10 17:38:08,274 INFO  L87              Difference]: Start difference. First operand 14 states and 15 transitions. Second operand  has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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 17:38:08,347 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 17:38:08,347 INFO  L93              Difference]: Finished difference Result 39 states and 45 transitions.
[2022-01-10 17:38:08,349 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 17:38:08,349 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2022-01-10 17:38:08,349 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 17:38:08,350 INFO  L225             Difference]: With dead ends: 39
[2022-01-10 17:38:08,350 INFO  L226             Difference]: Without dead ends: 35
[2022-01-10 17:38:08,350 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-01-10 17:38:08,351 INFO  L933         BasicCegarLoop]: 18 mSDtfsCounter, 47 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 17:38:08,351 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 54 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 17:38:08,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2022-01-10 17:38:08,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2022-01-10 17:38:08,357 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 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 17:38:08,359 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions.
[2022-01-10 17:38:08,359 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 11
[2022-01-10 17:38:08,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 17:38:08,359 INFO  L470      AbstractCegarLoop]: Abstraction has 35 states and 39 transitions.
[2022-01-10 17:38:08,359 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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 17:38:08,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions.
[2022-01-10 17:38:08,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2022-01-10 17:38:08,360 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 17:38:08,361 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1]
[2022-01-10 17:38:08,379 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-10 17:38:08,575 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 17:38:08,576 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 17:38:08,576 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 17:38:08,576 INFO  L85        PathProgramCache]: Analyzing trace with hash 112910537, now seen corresponding path program 2 times
[2022-01-10 17:38:08,576 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 17:38:08,576 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608567461]
[2022-01-10 17:38:08,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 17:38:08,577 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 17:38:08,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 17:38:08,729 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 17:38:08,729 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 17:38:08,729 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608567461]
[2022-01-10 17:38:08,729 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608567461] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 17:38:08,731 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354832527]
[2022-01-10 17:38:08,732 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-10 17:38:08,732 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 17:38:08,732 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 17:38:08,733 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 17:38:08,762 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 17:38:08,811 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-10 17:38:08,811 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 17:38:08,813 INFO  L263         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core
[2022-01-10 17:38:08,814 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 17:38:17,802 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 17:38:17,802 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 17:38:19,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 17:38:19,477 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [354832527] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 17:38:19,478 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 17:38:19,478 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16
[2022-01-10 17:38:19,478 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210449813]
[2022-01-10 17:38:19,478 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 17:38:19,478 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-01-10 17:38:19,478 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 17:38:19,479 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-01-10 17:38:19,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=160, Unknown=2, NotChecked=0, Total=240
[2022-01-10 17:38:19,480 INFO  L87              Difference]: Start difference. First operand 35 states and 39 transitions. Second operand  has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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 17:38:27,260 WARN  L228               SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-10 17:38:35,007 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 17:38:35,007 INFO  L93              Difference]: Finished difference Result 74 states and 87 transitions.
[2022-01-10 17:38:35,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-10 17:38:35,012 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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 26
[2022-01-10 17:38:35,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 17:38:35,022 INFO  L225             Difference]: With dead ends: 74
[2022-01-10 17:38:35,022 INFO  L226             Difference]: Without dead ends: 70
[2022-01-10 17:38:35,026 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=149, Invalid=269, Unknown=2, NotChecked=0, Total=420
[2022-01-10 17:38:35,027 INFO  L933         BasicCegarLoop]: 30 mSDtfsCounter, 108 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-01-10 17:38:35,027 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 222 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 27 Unchecked, 0.7s Time]
[2022-01-10 17:38:35,028 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2022-01-10 17:38:35,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2022-01-10 17:38:35,039 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 69 states have (on average 1.144927536231884) internal successors, (79), 69 states have internal predecessors, (79), 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 17:38:35,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions.
[2022-01-10 17:38:35,040 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 26
[2022-01-10 17:38:35,040 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 17:38:35,040 INFO  L470      AbstractCegarLoop]: Abstraction has 70 states and 79 transitions.
[2022-01-10 17:38:35,041 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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 17:38:35,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions.
[2022-01-10 17:38:35,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2022-01-10 17:38:35,043 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 17:38:35,043 INFO  L514         BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1]
[2022-01-10 17:38:35,047 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-01-10 17:38:35,243 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2022-01-10 17:38:35,244 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 17:38:35,244 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 17:38:35,244 INFO  L85        PathProgramCache]: Analyzing trace with hash 1952963967, now seen corresponding path program 3 times
[2022-01-10 17:38:35,244 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 17:38:35,244 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180825090]
[2022-01-10 17:38:35,245 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 17:38:35,245 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 17:38:35,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 17:38:35,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 17:38:35,425 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 17:38:35,426 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180825090]
[2022-01-10 17:38:35,426 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180825090] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 17:38:35,426 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470213039]
[2022-01-10 17:38:35,426 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-01-10 17:38:35,426 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 17:38:35,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 17:38:35,440 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 17:38:35,441 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-10 17:38:36,164 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s)
[2022-01-10 17:38:36,164 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 17:38:36,166 INFO  L263         TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 38 conjunts are in the unsatisfiable core
[2022-01-10 17:38:36,169 INFO  L286         TraceCheckSpWp]: Computing forward predicates...