/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/nla-digbench-scaling/cohendiv-ll_valuebound10.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 14:42:11,632 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 14:42:11,634 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 14:42:11,676 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 14:42:11,677 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 14:42:11,678 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 14:42:11,687 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 14:42:11,688 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 14:42:11,689 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 14:42:11,690 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-10 14:42:11,690 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-10 14:42:11,691 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 14:42:11,691 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 14:42:11,692 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 14:42:11,693 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 14:42:11,695 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 14:42:11,696 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 14:42:11,697 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 14:42:11,698 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 14:42:11,699 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 14:42:11,700 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 14:42:11,702 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 14:42:11,703 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 14:42:11,703 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 14:42:11,705 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 14:42:11,705 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 14:42:11,706 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 14:42:11,706 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 14:42:11,706 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 14:42:11,707 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 14:42:11,707 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 14:42:11,708 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 14:42:11,708 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 14:42:11,708 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 14:42:11,709 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 14:42:11,709 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 14:42:11,710 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 14:42:11,710 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 14:42:11,710 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 14:42:11,711 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 14:42:11,711 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 14:42:11,712 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 14:42:11,725 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 14:42:11,725 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 14:42:11,726 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 14:42:11,726 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 14:42:11,726 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 14:42:11,727 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 14:42:11,727 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 14:42:11,730 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 14:42:11,730 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 14:42:11,730 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 14:42:11,731 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 14:42:11,731 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 14:42:11,731 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 14:42:11,731 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 14:42:11,731 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 14:42:11,732 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 14:42:11,732 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 14:42:11,732 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 14:42:11,732 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 14:42:11,732 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 14:42:11,732 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 14:42:11,733 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 14:42:11,733 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 14:42:11,733 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 14:42:11,733 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 14:42:11,733 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 14:42:11,734 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 14:42:11,734 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 14:42:11,734 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 14:42:11,734 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 14:42:11,734 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 14:42:11,734 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 14:42:11,736 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 14:42:11,736 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 14:42:11,935 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 14:42:11,954 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 14:42:11,956 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 14:42:11,956 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 14:42:11,957 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 14:42:11,958 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound10.c
[2022-01-10 14:42:12,017 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a644f5f/0fb9d86f05894647b6c13e9f79584a41/FLAG6fe813e63
[2022-01-10 14:42:12,330 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 14:42:12,330 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_valuebound10.c
[2022-01-10 14:42:12,334 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a644f5f/0fb9d86f05894647b6c13e9f79584a41/FLAG6fe813e63
[2022-01-10 14:42:12,342 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a644f5f/0fb9d86f05894647b6c13e9f79584a41
[2022-01-10 14:42:12,344 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 14:42:12,345 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 14:42:12,346 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 14:42:12,346 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 14:42:12,349 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 14:42:12,349 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,350 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46373ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12, skipping insertion in model container
[2022-01-10 14:42:12,350 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,354 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 14:42:12,363 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 14:42:12,504 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/cohendiv-ll_valuebound10.c[576,589]
[2022-01-10 14:42:12,534 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 14:42:12,546 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 14:42:12,555 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/cohendiv-ll_valuebound10.c[576,589]
[2022-01-10 14:42:12,564 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 14:42:12,579 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 14:42:12,579 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12 WrapperNode
[2022-01-10 14:42:12,579 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 14:42:12,582 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 14:42:12,582 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 14:42:12,582 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 14:42:12,586 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,593 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,619 INFO  L137                Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 98
[2022-01-10 14:42:12,620 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 14:42:12,620 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 14:42:12,621 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 14:42:12,621 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 14:42:12,626 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,626 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,631 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,631 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,638 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,641 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,642 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,643 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 14:42:12,644 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 14:42:12,644 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 14:42:12,644 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 14:42:12,648 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (1/1) ...
[2022-01-10 14:42:12,653 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 14:42:12,660 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:42:12,670 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 14:42:12,689 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 14:42:12,712 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 14:42:12,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 14:42:12,713 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 14:42:12,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 14:42:12,752 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 14:42:12,753 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 14:42:13,113 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 14:42:13,118 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 14:42:13,118 INFO  L299             CfgBuilder]: Removed 2 assume(true) statements.
[2022-01-10 14:42:13,119 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:13 BoogieIcfgContainer
[2022-01-10 14:42:13,119 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 14:42:13,120 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 14:42:13,120 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 14:42:13,120 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 14:42:13,122 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:13" (1/1) ...
[2022-01-10 14:42:13,248 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:42:13 BasicIcfg
[2022-01-10 14:42:13,248 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 14:42:13,249 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 14:42:13,249 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 14:42:13,251 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 14:42:13,251 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:42:12" (1/4) ...
[2022-01-10 14:42:13,251 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612c551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:42:13, skipping insertion in model container
[2022-01-10 14:42:13,251 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:12" (2/4) ...
[2022-01-10 14:42:13,252 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612c551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:42:13, skipping insertion in model container
[2022-01-10 14:42:13,252 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:13" (3/4) ...
[2022-01-10 14:42:13,252 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612c551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:42:13, skipping insertion in model container
[2022-01-10 14:42:13,252 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:42:13" (4/4) ...
[2022-01-10 14:42:13,252 INFO  L111   eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.cTransformedIcfg
[2022-01-10 14:42:13,255 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 14:42:13,256 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations.
[2022-01-10 14:42:13,285 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 14:42:13,289 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 14:42:13,289 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2022-01-10 14:42:13,314 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 45 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 44 states have internal predecessors, (60), 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 14:42:13,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-01-10 14:42:13,317 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:42:13,317 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:42:13,317 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2022-01-10 14:42:13,321 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:42:13,322 INFO  L85        PathProgramCache]: Analyzing trace with hash -1484681195, now seen corresponding path program 1 times
[2022-01-10 14:42:13,327 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:42:13,328 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331587691]
[2022-01-10 14:42:13,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:13,328 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:42:13,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:42:13,474 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 14:42:13,475 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:42:13,475 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331587691]
[2022-01-10 14:42:13,476 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331587691] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:42:13,476 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:42:13,476 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 14:42:13,477 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864719434]
[2022-01-10 14:42:13,478 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:42:13,481 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 14:42:13,481 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:42:13,503 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 14:42:13,504 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 14:42:13,506 INFO  L87              Difference]: Start difference. First operand  has 45 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 44 states have internal predecessors, (60), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 14:42:13,521 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:42:13,521 INFO  L93              Difference]: Finished difference Result 87 states and 116 transitions.
[2022-01-10 14:42:13,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 14:42:13,523 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 14:42:13,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:42:13,527 INFO  L225             Difference]: With dead ends: 87
[2022-01-10 14:42:13,528 INFO  L226             Difference]: Without dead ends: 41
[2022-01-10 14:42:13,529 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 14:42:13,532 INFO  L933         BasicCegarLoop]: 46 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, 46 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 14:42:13,533 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 14:42:13,543 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2022-01-10 14:42:13,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2022-01-10 14:42:13,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 40 states have internal predecessors, (42), 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 14:42:13,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions.
[2022-01-10 14:42:13,556 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11
[2022-01-10 14:42:13,556 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:42:13,556 INFO  L470      AbstractCegarLoop]: Abstraction has 41 states and 42 transitions.
[2022-01-10 14:42:13,557 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 14:42:13,557 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions.
[2022-01-10 14:42:13,558 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-01-10 14:42:13,558 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:42:13,558 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:42:13,558 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 14:42:13,559 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2022-01-10 14:42:13,560 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:42:13,560 INFO  L85        PathProgramCache]: Analyzing trace with hash 1891258840, now seen corresponding path program 1 times
[2022-01-10 14:42:13,561 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:42:13,561 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831941441]
[2022-01-10 14:42:13,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:13,561 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:42:13,608 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 14:42:13,608 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60077477]
[2022-01-10 14:42:13,608 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:13,608 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:13,609 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:42:13,620 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 14:42:13,621 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 14:42:13,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:42:13,708 INFO  L263         TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-01-10 14:42:13,713 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 14:42:13,780 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 14:42:13,780 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 14:42:13,781 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:42:13,781 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831941441]
[2022-01-10 14:42:13,781 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 14:42:13,784 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60077477]
[2022-01-10 14:42:13,784 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [60077477] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:42:13,784 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:42:13,785 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-10 14:42:13,785 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422524494]
[2022-01-10 14:42:13,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:42:13,786 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-10 14:42:13,786 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:42:13,787 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-10 14:42:13,787 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-10 14:42:13,787 INFO  L87              Difference]: Start difference. First operand 41 states and 42 transitions. Second operand  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 14:42:13,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:42:13,951 INFO  L93              Difference]: Finished difference Result 55 states and 56 transitions.
[2022-01-10 14:42:13,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 14:42:13,952 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 14:42:13,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:42:13,952 INFO  L225             Difference]: With dead ends: 55
[2022-01-10 14:42:13,952 INFO  L226             Difference]: Without dead ends: 53
[2022-01-10 14:42:13,953 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-10 14:42:13,953 INFO  L933         BasicCegarLoop]: 41 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-10 14:42:13,954 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 89 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-10 14:42:13,954 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2022-01-10 14:42:13,957 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43.
[2022-01-10 14:42:13,957 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 43 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 42 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 14:42:13,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions.
[2022-01-10 14:42:13,958 INFO  L78                 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 11
[2022-01-10 14:42:13,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:42:13,958 INFO  L470      AbstractCegarLoop]: Abstraction has 43 states and 44 transitions.
[2022-01-10 14:42:13,958 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 14:42:13,958 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions.
[2022-01-10 14:42:13,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-01-10 14:42:13,958 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:42:13,959 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:42:13,963 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-01-10 14:42:14,162 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:14,162 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2022-01-10 14:42:14,163 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:42:14,163 INFO  L85        PathProgramCache]: Analyzing trace with hash 728616028, now seen corresponding path program 1 times
[2022-01-10 14:42:14,163 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:42:14,163 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598715716]
[2022-01-10 14:42:14,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:14,164 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:42:14,195 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 14:42:14,195 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513024528]
[2022-01-10 14:42:14,195 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:14,197 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:14,197 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:42:14,198 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 14:42:14,200 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 14:42:14,271 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:42:14,273 INFO  L263         TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-10 14:42:14,275 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 14:42:14,488 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 14:42:14,488 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 14:42:14,489 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:42:14,489 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598715716]
[2022-01-10 14:42:14,489 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 14:42:14,489 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513024528]
[2022-01-10 14:42:14,489 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [513024528] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:42:14,489 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:42:14,489 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 14:42:14,489 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600639374]
[2022-01-10 14:42:14,489 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:42:14,490 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 14:42:14,490 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:42:14,491 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 14:42:14,491 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-10 14:42:14,491 INFO  L87              Difference]: Start difference. First operand 43 states and 44 transitions. Second operand  has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 14:42:15,313 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:42:15,314 INFO  L93              Difference]: Finished difference Result 72 states and 74 transitions.
[2022-01-10 14:42:15,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 14:42:15,314 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2022-01-10 14:42:15,315 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:42:15,315 INFO  L225             Difference]: With dead ends: 72
[2022-01-10 14:42:15,315 INFO  L226             Difference]: Without dead ends: 64
[2022-01-10 14:42:15,315 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-10 14:42:15,316 INFO  L933         BasicCegarLoop]: 31 mSDtfsCounter, 85 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-01-10 14:42:15,316 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 76 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-01-10 14:42:15,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2022-01-10 14:42:15,321 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57.
[2022-01-10 14:42:15,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 50 states have (on average 1.24) internal successors, (62), 56 states have internal predecessors, (62), 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 14:42:15,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions.
[2022-01-10 14:42:15,322 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 13
[2022-01-10 14:42:15,322 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:42:15,322 INFO  L470      AbstractCegarLoop]: Abstraction has 57 states and 62 transitions.
[2022-01-10 14:42:15,322 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 14:42:15,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions.
[2022-01-10 14:42:15,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-10 14:42:15,322 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:42:15,322 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:42:15,328 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-10 14:42:15,527 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-01-10 14:42:15,528 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2022-01-10 14:42:15,528 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:42:15,528 INFO  L85        PathProgramCache]: Analyzing trace with hash -287664862, now seen corresponding path program 1 times
[2022-01-10 14:42:15,529 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:42:15,529 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144531892]
[2022-01-10 14:42:15,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:15,529 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:42:15,558 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 14:42:15,559 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598980940]
[2022-01-10 14:42:15,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:15,559 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:15,559 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:42:15,564 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 14:42:15,565 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 14:42:15,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:42:15,718 INFO  L263         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjunts are in the unsatisfiable core
[2022-01-10 14:42:15,721 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 14:42:16,811 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 14:42:16,811 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 14:42:16,811 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:42:16,811 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144531892]
[2022-01-10 14:42:16,811 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 14:42:16,811 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598980940]
[2022-01-10 14:42:16,811 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598980940] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:42:16,811 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:42:16,811 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2022-01-10 14:42:16,812 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407862200]
[2022-01-10 14:42:16,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:42:16,812 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2022-01-10 14:42:16,812 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:42:16,812 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2022-01-10 14:42:16,812 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2022-01-10 14:42:16,813 INFO  L87              Difference]: Start difference. First operand 57 states and 62 transitions. Second operand  has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 14:42:17,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:42:17,272 INFO  L93              Difference]: Finished difference Result 100 states and 110 transitions.
[2022-01-10 14:42:17,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-10 14:42:17,272 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2022-01-10 14:42:17,272 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:42:17,273 INFO  L225             Difference]: With dead ends: 100
[2022-01-10 14:42:17,273 INFO  L226             Difference]: Without dead ends: 94
[2022-01-10 14:42:17,273 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240
[2022-01-10 14:42:17,274 INFO  L933         BasicCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-10 14:42:17,274 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 184 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 28 Unchecked, 0.3s Time]
[2022-01-10 14:42:17,275 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2022-01-10 14:42:17,282 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 82.
[2022-01-10 14:42:17,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 81 states have internal predecessors, (94), 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 14:42:17,283 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions.
[2022-01-10 14:42:17,283 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 17
[2022-01-10 14:42:17,283 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:42:17,283 INFO  L470      AbstractCegarLoop]: Abstraction has 82 states and 94 transitions.
[2022-01-10 14:42:17,284 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 14:42:17,284 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions.
[2022-01-10 14:42:17,284 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-01-10 14:42:17,284 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:42:17,284 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:42:17,302 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-01-10 14:42:17,488 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:17,491 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2022-01-10 14:42:17,492 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:42:17,496 INFO  L85        PathProgramCache]: Analyzing trace with hash 697218440, now seen corresponding path program 1 times
[2022-01-10 14:42:17,496 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:42:17,497 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951422824]
[2022-01-10 14:42:17,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:17,497 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:42:17,526 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 14:42:17,526 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192133405]
[2022-01-10 14:42:17,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:17,526 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:17,527 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:42:17,529 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 14:42:17,530 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-01-10 14:42:17,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:42:17,599 INFO  L263         TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-10 14:42:17,601 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 14:42:18,095 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 14:42:18,095 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 14:42:18,095 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:42:18,095 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951422824]
[2022-01-10 14:42:18,095 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 14:42:18,096 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192133405]
[2022-01-10 14:42:18,096 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [192133405] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:42:18,096 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:42:18,096 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-01-10 14:42:18,096 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614191676]
[2022-01-10 14:42:18,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:42:18,096 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-10 14:42:18,096 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:42:18,096 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-10 14:42:18,097 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-01-10 14:42:18,097 INFO  L87              Difference]: Start difference. First operand 82 states and 94 transitions. Second operand  has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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 14:42:18,365 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:42:18,365 INFO  L93              Difference]: Finished difference Result 84 states and 95 transitions.
[2022-01-10 14:42:18,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-01-10 14:42:18,366 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) Word has length 21
[2022-01-10 14:42:18,366 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:42:18,366 INFO  L225             Difference]: With dead ends: 84
[2022-01-10 14:42:18,366 INFO  L226             Difference]: Without dead ends: 82
[2022-01-10 14:42:18,367 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2022-01-10 14:42:18,367 INFO  L933         BasicCegarLoop]: 40 mSDtfsCounter, 17 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-10 14:42:18,367 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 146 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 24 Unchecked, 0.2s Time]
[2022-01-10 14:42:18,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2022-01-10 14:42:18,374 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2022-01-10 14:42:18,374 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 75 states have (on average 1.24) internal successors, (93), 81 states have internal predecessors, (93), 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 14:42:18,375 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions.
[2022-01-10 14:42:18,375 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 21
[2022-01-10 14:42:18,375 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:42:18,375 INFO  L470      AbstractCegarLoop]: Abstraction has 82 states and 93 transitions.
[2022-01-10 14:42:18,375 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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 14:42:18,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions.
[2022-01-10 14:42:18,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2022-01-10 14:42:18,376 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:42:18,376 INFO  L514         BasicCegarLoop]: trace histogram [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]
[2022-01-10 14:42:18,419 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-01-10 14:42:18,591 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:18,592 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] ===
[2022-01-10 14:42:18,592 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:42:18,592 INFO  L85        PathProgramCache]: Analyzing trace with hash 1361271542, now seen corresponding path program 1 times
[2022-01-10 14:42:18,592 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:42:18,592 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101863692]
[2022-01-10 14:42:18,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:18,592 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:42:18,604 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 14:42:18,604 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752278551]
[2022-01-10 14:42:18,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:42:18,605 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:42:18,605 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:42:18,605 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 14:42:18,606 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-01-10 14:42:19,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:42:19,057 INFO  L263         TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 40 conjunts are in the unsatisfiable core
[2022-01-10 14:42:19,059 INFO  L286         TraceCheckSpWp]: Computing forward predicates...