/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound5.c


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


This is Ultimate 0.2.2-dev-05ce600
[2022-02-23 19:13:59,562 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-02-23 19:13:59,574 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-23 19:13:59,626 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-23 19:13:59,626 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-23 19:13:59,637 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-23 19:13:59,639 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-23 19:13:59,640 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-23 19:13:59,642 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-23 19:13:59,642 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-23 19:13:59,643 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-02-23 19:13:59,644 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-23 19:13:59,644 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-23 19:13:59,645 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-23 19:13:59,646 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-23 19:13:59,647 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-23 19:13:59,648 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-23 19:13:59,648 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-23 19:13:59,650 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-23 19:13:59,651 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-23 19:13:59,652 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-23 19:13:59,653 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-23 19:13:59,654 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-02-23 19:13:59,655 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-23 19:13:59,657 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-23 19:13:59,657 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-23 19:13:59,657 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-23 19:13:59,658 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-23 19:13:59,658 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-23 19:13:59,659 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-23 19:13:59,659 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-23 19:13:59,660 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-23 19:13:59,660 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-23 19:13:59,661 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-23 19:13:59,661 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-23 19:13:59,662 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-23 19:13:59,662 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-23 19:13:59,662 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-23 19:13:59,663 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-23 19:13:59,663 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-23 19:13:59,664 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-23 19:13:59,665 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-02-23 19:13:59,672 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-23 19:13:59,672 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-23 19:13:59,673 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-23 19:13:59,673 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-23 19:13:59,674 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-23 19:13:59,674 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-23 19:13:59,674 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-23 19:13:59,674 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-23 19:13:59,674 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-23 19:13:59,674 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-23 19:13:59,675 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-23 19:13:59,675 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-23 19:13:59,675 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-23 19:13:59,675 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-23 19:13:59,675 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-23 19:13:59,675 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-23 19:13:59,675 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-23 19:13:59,676 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-23 19:13:59,676 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-23 19:13:59,676 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-23 19:13:59,676 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-23 19:13:59,677 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-02-23 19:13:59,677 INFO  L138        SettingsManager]:  * TransformationType=LOOP_ACCELERATION_JORDAN
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-23 19:13:59,890 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-23 19:13:59,920 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-23 19:13:59,922 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-23 19:13:59,923 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-02-23 19:13:59,927 INFO  L275        PluginConnector]: CDTParser initialized
[2022-02-23 19:13:59,928 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound5.c
[2022-02-23 19:13:59,992 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5838c8a3/108456ed58ef4725aa2d03b5052ed4ac/FLAG8d58bb202
[2022-02-23 19:14:00,345 INFO  L306              CDTParser]: Found 1 translation units.
[2022-02-23 19:14:00,346 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound5.c
[2022-02-23 19:14:00,351 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5838c8a3/108456ed58ef4725aa2d03b5052ed4ac/FLAG8d58bb202
[2022-02-23 19:14:00,769 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5838c8a3/108456ed58ef4725aa2d03b5052ed4ac
[2022-02-23 19:14:00,771 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-23 19:14:00,772 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-23 19:14:00,777 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-23 19:14:00,777 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-23 19:14:00,780 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-23 19:14:00,780 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:14:00" (1/1) ...
[2022-02-23 19:14:00,781 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b64217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:00, skipping insertion in model container
[2022-02-23 19:14:00,781 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:14:00" (1/1) ...
[2022-02-23 19:14:00,787 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-02-23 19:14:00,800 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-02-23 19:14:00,931 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound5.c[537,550]
[2022-02-23 19:14:00,974 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-23 19:14:00,983 INFO  L203         MainTranslator]: Completed pre-run
[2022-02-23 19:14:00,994 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound5.c[537,550]
[2022-02-23 19:14:00,999 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-23 19:14:01,010 INFO  L208         MainTranslator]: Completed translation
[2022-02-23 19:14:01,011 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01 WrapperNode
[2022-02-23 19:14:01,011 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-23 19:14:01,012 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-23 19:14:01,012 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-23 19:14:01,012 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-23 19:14:01,022 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,022 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,028 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,028 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,041 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,044 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,045 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,046 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-23 19:14:01,047 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-23 19:14:01,047 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-23 19:14:01,047 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-23 19:14:01,049 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,055 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-23 19:14:01,064 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-23 19:14:01,075 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)
[2022-02-23 19:14:01,096 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
[2022-02-23 19:14:01,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-23 19:14:01,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-23 19:14:01,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-23 19:14:01,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-02-23 19:14:01,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-02-23 19:14:01,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2022-02-23 19:14:01,118 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2022-02-23 19:14:01,118 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-23 19:14:01,118 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-23 19:14:01,118 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-23 19:14:01,118 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2022-02-23 19:14:01,118 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-02-23 19:14:01,119 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-23 19:14:01,175 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-23 19:14:01,177 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-23 19:14:01,316 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-23 19:14:01,321 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-23 19:14:01,321 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-02-23 19:14:01,323 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:14:01 BoogieIcfgContainer
[2022-02-23 19:14:01,323 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-23 19:14:01,323 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-02-23 19:14:01,324 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-02-23 19:14:01,324 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-02-23 19:14:01,345 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:14:01" (1/1) ...
[2022-02-23 19:14:01,360 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:14:01 BasicIcfg
[2022-02-23 19:14:01,360 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-02-23 19:14:01,362 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-23 19:14:01,362 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-23 19:14:01,389 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-23 19:14:01,390 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:14:00" (1/4) ...
[2022-02-23 19:14:01,390 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e39310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:14:01, skipping insertion in model container
[2022-02-23 19:14:01,390 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:14:01" (2/4) ...
[2022-02-23 19:14:01,391 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e39310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:14:01, skipping insertion in model container
[2022-02-23 19:14:01,391 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:14:01" (3/4) ...
[2022-02-23 19:14:01,391 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e39310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:14:01, skipping insertion in model container
[2022-02-23 19:14:01,391 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:14:01" (4/4) ...
[2022-02-23 19:14:01,392 INFO  L111   eAbstractionObserver]: Analyzing ICFG lcm2_valuebound5.cJordan
[2022-02-23 19:14:01,396 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-02-23 19:14:01,396 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-23 19:14:01,451 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-23 19:14:01,458 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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
[2022-02-23 19:14:01,458 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-23 19:14:01,471 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 34 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2022-02-23 19:14:01,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2022-02-23 19:14:01,488 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-23 19:14:01,489 INFO  L514         BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-23 19:14:01,489 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-23 19:14:01,494 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-23 19:14:01,494 INFO  L85        PathProgramCache]: Analyzing trace with hash -419271626, now seen corresponding path program 1 times
[2022-02-23 19:14:01,501 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-23 19:14:01,502 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620975317]
[2022-02-23 19:14:01,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 19:14:01,503 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-23 19:14:01,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,711 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-23 19:14:01,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,731 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-02-23 19:14:01,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,741 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2022-02-23 19:14:01,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,747 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2022-02-23 19:14:01,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,752 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2022-02-23 19:14:01,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,758 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2022-02-23 19:14:01,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,765 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2022-02-23 19:14:01,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:01,774 INFO  L134       CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2022-02-23 19:14:01,775 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-23 19:14:01,775 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620975317]
[2022-02-23 19:14:01,775 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620975317] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-23 19:14:01,776 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-23 19:14:01,776 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-23 19:14:01,777 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598134677]
[2022-02-23 19:14:01,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-23 19:14:01,781 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-23 19:14:01,781 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-23 19:14:01,801 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-23 19:14:01,802 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-23 19:14:01,804 INFO  L87              Difference]: Start difference. First operand  has 34 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2022-02-23 19:14:01,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-23 19:14:01,855 INFO  L93              Difference]: Finished difference Result 34 states and 41 transitions.
[2022-02-23 19:14:01,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-23 19:14:01,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43
[2022-02-23 19:14:01,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-23 19:14:01,863 INFO  L225             Difference]: With dead ends: 34
[2022-02-23 19:14:01,863 INFO  L226             Difference]: Without dead ends: 29
[2022-02-23 19:14:01,865 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-23 19:14:01,868 INFO  L933         BasicCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-23 19:14:01,868 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 36 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-23 19:14:01,882 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2022-02-23 19:14:01,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2022-02-23 19:14:01,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-02-23 19:14:01,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions.
[2022-02-23 19:14:01,897 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 43
[2022-02-23 19:14:01,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-23 19:14:01,898 INFO  L470      AbstractCegarLoop]: Abstraction has 29 states and 36 transitions.
[2022-02-23 19:14:01,898 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2022-02-23 19:14:01,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions.
[2022-02-23 19:14:01,900 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2022-02-23 19:14:01,900 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-23 19:14:01,900 INFO  L514         BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-23 19:14:01,900 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-23 19:14:01,900 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-23 19:14:01,901 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-23 19:14:01,901 INFO  L85        PathProgramCache]: Analyzing trace with hash -1223303911, now seen corresponding path program 1 times
[2022-02-23 19:14:01,901 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-23 19:14:01,902 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599784848]
[2022-02-23 19:14:01,902 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 19:14:01,902 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-23 19:14:01,922 ERROR L252   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-02-23 19:14:01,922 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131508637]
[2022-02-23 19:14:01,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 19:14:01,923 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-23 19:14:01,923 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-23 19:14:01,935 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)
[2022-02-23 19:14:01,938 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-02-23 19:14:02,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 19:14:02,008 INFO  L263         TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 30 conjunts are in the unsatisfiable core
[2022-02-23 19:14:02,015 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-23 19:14:02,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2022-02-23 19:14:02,252 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-02-23 19:14:02,252 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-23 19:14:02,252 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599784848]
[2022-02-23 19:14:02,252 WARN  L317   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-02-23 19:14:02,253 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131508637]
[2022-02-23 19:14:02,253 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131508637] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-23 19:14:02,253 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-23 19:14:02,253 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-23 19:14:02,254 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631813530]
[2022-02-23 19:14:02,254 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-23 19:14:02,254 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-23 19:14:02,255 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-23 19:14:02,255 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-23 19:14:02,255 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-23 19:14:02,255 INFO  L87              Difference]: Start difference. First operand 29 states and 36 transitions. Second operand  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2022-02-23 19:14:02,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-23 19:14:02,322 INFO  L93              Difference]: Finished difference Result 38 states and 47 transitions.
[2022-02-23 19:14:02,322 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-23 19:14:02,323 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 43
[2022-02-23 19:14:02,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-23 19:14:02,324 INFO  L225             Difference]: With dead ends: 38
[2022-02-23 19:14:02,324 INFO  L226             Difference]: Without dead ends: 37
[2022-02-23 19:14:02,325 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-02-23 19:14:02,326 INFO  L933         BasicCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-23 19:14:02,326 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 115 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-23 19:14:02,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2022-02-23 19:14:02,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36.
[2022-02-23 19:14:02,332 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2022-02-23 19:14:02,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions.
[2022-02-23 19:14:02,333 INFO  L78                 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 43
[2022-02-23 19:14:02,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-23 19:14:02,334 INFO  L470      AbstractCegarLoop]: Abstraction has 36 states and 43 transitions.
[2022-02-23 19:14:02,334 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2022-02-23 19:14:02,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions.
[2022-02-23 19:14:02,335 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2022-02-23 19:14:02,336 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-23 19:14:02,336 INFO  L514         BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-23 19:14:02,354 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-02-23 19:14:02,543 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-23 19:14:02,543 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-23 19:14:02,544 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-23 19:14:02,544 INFO  L85        PathProgramCache]: Analyzing trace with hash 1282076869, now seen corresponding path program 1 times
[2022-02-23 19:14:02,544 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-23 19:14:02,544 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336356502]
[2022-02-23 19:14:02,545 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 19:14:02,545 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-23 19:14:02,584 ERROR L252   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-02-23 19:14:02,584 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979262983]
[2022-02-23 19:14:02,584 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 19:14:02,585 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-23 19:14:02,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-23 19:14:02,586 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)
[2022-02-23 19:14:02,599 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process