/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_SUM.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound10.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 02:40:13,724 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 02:40:13,725 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 02:40:13,787 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 02:40:13,787 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 02:40:13,790 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 02:40:13,792 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-11 02:40:13,796 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-11 02:40:13,798 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 02:40:13,802 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-11 02:40:13,802 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-11 02:40:13,803 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 02:40:13,803 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 02:40:13,803 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 02:40:13,804 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 02:40:13,804 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 02:40:13,805 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 02:40:13,805 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 02:40:13,806 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 02:40:13,807 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 02:40:13,808 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 02:40:13,810 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 02:40:13,813 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 02:40:13,814 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 02:40:13,820 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 02:40:13,820 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 02:40:13,820 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 02:40:13,821 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 02:40:13,821 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 02:40:13,822 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 02:40:13,822 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 02:40:13,822 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 02:40:13,823 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 02:40:13,824 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 02:40:13,825 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 02:40:13,825 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 02:40:13,825 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 02:40:13,825 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 02:40:13,826 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 02:40:13,826 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 02:40:13,826 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 02:40:13,827 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf
[2022-01-11 02:40:13,851 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 02:40:13,851 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 02:40:13,851 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 02:40:13,851 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 02:40:13,852 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 02:40:13,852 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 02:40:13,852 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 02:40:13,853 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 02:40:13,853 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 02:40:13,854 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 02:40:13,854 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 02:40:13,854 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 02:40:13,855 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 02:40:13,855 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 02:40:13,855 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 02:40:13,855 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 02:40:13,855 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 02:40:13,855 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 02:40:13,856 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 02:40:13,856 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_SUM
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 02:40:14,037 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 02:40:14,051 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 02:40:14,053 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 02:40:14,053 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 02:40:14,055 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 02:40:14,055 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound10.c
[2022-01-11 02:40:14,099 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a627340/7582a7e74bcd4a3d86ba9a50fc035e11/FLAG2b827aaf5
[2022-01-11 02:40:14,394 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 02:40:14,395 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound10.c
[2022-01-11 02:40:14,399 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a627340/7582a7e74bcd4a3d86ba9a50fc035e11/FLAG2b827aaf5
[2022-01-11 02:40:14,849 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a627340/7582a7e74bcd4a3d86ba9a50fc035e11
[2022-01-11 02:40:14,851 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 02:40:14,852 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 02:40:14,854 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 02:40:14,854 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 02:40:14,856 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 02:40:14,857 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:40:14" (1/1) ...
[2022-01-11 02:40:14,858 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e997865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:14, skipping insertion in model container
[2022-01-11 02:40:14,858 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:40:14" (1/1) ...
[2022-01-11 02:40:14,863 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 02:40:14,873 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 02:40:14,973 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/lcm1_valuebound10.c[552,565]
[2022-01-11 02:40:14,990 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 02:40:15,004 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 02:40:15,015 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/lcm1_valuebound10.c[552,565]
[2022-01-11 02:40:15,020 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 02:40:15,031 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 02:40:15,031 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15 WrapperNode
[2022-01-11 02:40:15,031 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 02:40:15,033 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 02:40:15,033 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 02:40:15,033 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 02:40:15,038 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,043 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,061 INFO  L137                Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 109
[2022-01-11 02:40:15,061 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 02:40:15,061 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 02:40:15,061 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 02:40:15,062 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 02:40:15,066 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,066 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,076 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,076 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,079 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,082 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,083 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,084 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 02:40:15,085 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 02:40:15,085 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 02:40:15,085 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 02:40:15,091 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,095 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 02:40:15,101 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:40:15,110 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)
[2022-01-11 02:40:15,112 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
[2022-01-11 02:40:15,141 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 02:40:15,142 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 02:40:15,142 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 02:40:15,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 02:40:15,184 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 02:40:15,185 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 02:40:15,521 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 02:40:15,525 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 02:40:15,525 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2022-01-11 02:40:15,528 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:40:15 BoogieIcfgContainer
[2022-01-11 02:40:15,528 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 02:40:15,528 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 02:40:15,528 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 02:40:15,529 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 02:40:15,531 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:40:15" (1/1) ...
[2022-01-11 02:40:15,590 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:40:15 BasicIcfg
[2022-01-11 02:40:15,590 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 02:40:15,591 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 02:40:15,591 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 02:40:15,593 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 02:40:15,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:40:14" (1/4) ...
[2022-01-11 02:40:15,593 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a94794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:40:15, skipping insertion in model container
[2022-01-11 02:40:15,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:40:15" (2/4) ...
[2022-01-11 02:40:15,593 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a94794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:40:15, skipping insertion in model container
[2022-01-11 02:40:15,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:40:15" (3/4) ...
[2022-01-11 02:40:15,594 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a94794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:40:15, skipping insertion in model container
[2022-01-11 02:40:15,594 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:40:15" (4/4) ...
[2022-01-11 02:40:15,594 INFO  L111   eAbstractionObserver]: Analyzing ICFG lcm1_valuebound10.cTransformedIcfg
[2022-01-11 02:40:15,597 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 02:40:15,597 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2022-01-11 02:40:15,625 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 02:40:15,629 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
[2022-01-11 02:40:15,630 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-01-11 02:40:15,640 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 43 states have internal predecessors, (63), 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)
[2022-01-11 02:40:15,643 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-11 02:40:15,643 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:40:15,643 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:40:15,644 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 02:40:15,646 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:40:15,647 INFO  L85        PathProgramCache]: Analyzing trace with hash -571069561, now seen corresponding path program 1 times
[2022-01-11 02:40:15,655 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:40:15,655 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218028442]
[2022-01-11 02:40:15,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:15,656 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:40:15,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:40:15,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:40:15,794 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:40:15,794 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218028442]
[2022-01-11 02:40:15,795 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218028442] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 02:40:15,796 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 02:40:15,796 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-11 02:40:15,797 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723932754]
[2022-01-11 02:40:15,797 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 02:40:15,800 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-11 02:40:15,801 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:40:15,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-11 02:40:15,822 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-11 02:40:15,823 INFO  L87              Difference]: Start difference. First operand  has 44 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 43 states have internal predecessors, (63), 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 8.5) internal successors, (17), 2 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)
[2022-01-11 02:40:15,844 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:40:15,844 INFO  L93              Difference]: Finished difference Result 85 states and 122 transitions.
[2022-01-11 02:40:15,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-11 02:40:15,846 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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
[2022-01-11 02:40:15,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:40:15,850 INFO  L225             Difference]: With dead ends: 85
[2022-01-11 02:40:15,850 INFO  L226             Difference]: Without dead ends: 40
[2022-01-11 02:40:15,853 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
[2022-01-11 02:40:15,856 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
[2022-01-11 02:40:15,857 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]
[2022-01-11 02:40:15,868 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2022-01-11 02:40:15,884 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2022-01-11 02:40:15,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 35 states have (on average 1.2) internal successors, (42), 39 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)
[2022-01-11 02:40:15,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions.
[2022-01-11 02:40:15,887 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17
[2022-01-11 02:40:15,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:40:15,888 INFO  L470      AbstractCegarLoop]: Abstraction has 40 states and 42 transitions.
[2022-01-11 02:40:15,888 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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)
[2022-01-11 02:40:15,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions.
[2022-01-11 02:40:15,889 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-11 02:40:15,889 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:40:15,890 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:40:15,890 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 02:40:15,890 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 02:40:15,893 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:40:15,893 INFO  L85        PathProgramCache]: Analyzing trace with hash -1779496372, now seen corresponding path program 1 times
[2022-01-11 02:40:15,893 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:40:15,893 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715753585]
[2022-01-11 02:40:15,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:15,893 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:40:15,948 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:40:15,948 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533763412]
[2022-01-11 02:40:15,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:15,948 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:40:15,949 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:40:15,962 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)
[2022-01-11 02:40:15,980 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-11 02:40:16,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:40:16,039 INFO  L263         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-01-11 02:40:16,042 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:40:16,590 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:40:16,590 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 02:40:16,590 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:40:16,591 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715753585]
[2022-01-11 02:40:16,591 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:40:16,593 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533763412]
[2022-01-11 02:40:16,594 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533763412] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 02:40:16,594 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 02:40:16,594 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2022-01-11 02:40:16,594 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222278968]
[2022-01-11 02:40:16,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 02:40:16,596 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-01-11 02:40:16,596 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:40:16,597 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-01-11 02:40:16,597 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2022-01-11 02:40:16,598 INFO  L87              Difference]: Start difference. First operand 40 states and 42 transitions. Second operand  has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 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)
[2022-01-11 02:40:16,917 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:40:16,917 INFO  L93              Difference]: Finished difference Result 67 states and 71 transitions.
[2022-01-11 02:40:16,918 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-01-11 02:40:16,918 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 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
[2022-01-11 02:40:16,918 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:40:16,919 INFO  L225             Difference]: With dead ends: 67
[2022-01-11 02:40:16,919 INFO  L226             Difference]: Without dead ends: 61
[2022-01-11 02:40:16,919 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240
[2022-01-11 02:40:16,920 INFO  L933         BasicCegarLoop]: 17 mSDtfsCounter, 171 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 02:40:16,920 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 44 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 02:40:16,921 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2022-01-11 02:40:16,926 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52.
[2022-01-11 02:40:16,926 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 51 states have internal predecessors, (57), 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)
[2022-01-11 02:40:16,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions.
[2022-01-11 02:40:16,927 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 17
[2022-01-11 02:40:16,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:40:16,927 INFO  L470      AbstractCegarLoop]: Abstraction has 52 states and 57 transitions.
[2022-01-11 02:40:16,927 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 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)
[2022-01-11 02:40:16,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions.
[2022-01-11 02:40:16,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-01-11 02:40:16,927 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:40:16,928 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]
[2022-01-11 02:40:16,946 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-11 02:40:17,139 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
[2022-01-11 02:40:17,140 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 02:40:17,140 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:40:17,140 INFO  L85        PathProgramCache]: Analyzing trace with hash -1716375385, now seen corresponding path program 1 times
[2022-01-11 02:40:17,141 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:40:17,141 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586500429]
[2022-01-11 02:40:17,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:17,141 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:40:17,156 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:40:17,157 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753814537]
[2022-01-11 02:40:17,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:17,157 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:40:17,157 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:40:17,160 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)
[2022-01-11 02:40:17,162 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-11 02:40:17,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:40:17,214 INFO  L263         TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 29 conjunts are in the unsatisfiable core
[2022-01-11 02:40:17,216 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:40:17,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:40:17,575 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 02:40:17,576 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:40:17,576 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586500429]
[2022-01-11 02:40:17,576 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:40:17,576 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753814537]
[2022-01-11 02:40:17,576 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753814537] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 02:40:17,576 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 02:40:17,576 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2022-01-11 02:40:17,576 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563539446]
[2022-01-11 02:40:17,576 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 02:40:17,577 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-01-11 02:40:17,577 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:40:17,577 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-01-11 02:40:17,577 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2022-01-11 02:40:17,577 INFO  L87              Difference]: Start difference. First operand 52 states and 57 transitions. Second operand  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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)
[2022-01-11 02:40:17,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:40:17,930 INFO  L93              Difference]: Finished difference Result 73 states and 80 transitions.
[2022-01-11 02:40:17,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-01-11 02:40:17,931 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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
[2022-01-11 02:40:17,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:40:17,932 INFO  L225             Difference]: With dead ends: 73
[2022-01-11 02:40:17,932 INFO  L226             Difference]: Without dead ends: 65
[2022-01-11 02:40:17,932 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240
[2022-01-11 02:40:17,933 INFO  L933         BasicCegarLoop]: 19 mSDtfsCounter, 100 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-11 02:40:17,933 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 76 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-11 02:40:17,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2022-01-11 02:40:17,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64.
[2022-01-11 02:40:17,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 63 states have internal predecessors, (71), 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)
[2022-01-11 02:40:17,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions.
[2022-01-11 02:40:17,939 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 21
[2022-01-11 02:40:17,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:40:17,939 INFO  L470      AbstractCegarLoop]: Abstraction has 64 states and 71 transitions.
[2022-01-11 02:40:17,940 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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)
[2022-01-11 02:40:17,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions.
[2022-01-11 02:40:17,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-01-11 02:40:17,940 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:40:17,940 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]
[2022-01-11 02:40:17,961 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-11 02:40:18,141 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
[2022-01-11 02:40:18,141 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 02:40:18,142 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:40:18,142 INFO  L85        PathProgramCache]: Analyzing trace with hash 816419945, now seen corresponding path program 1 times
[2022-01-11 02:40:18,142 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:40:18,142 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759875335]
[2022-01-11 02:40:18,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:18,142 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:40:18,157 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:40:18,157 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857219755]
[2022-01-11 02:40:18,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:18,157 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:40:18,157 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:40:18,161 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)
[2022-01-11 02:40:18,162 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-11 02:40:18,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:40:18,516 INFO  L263         TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 41 conjunts are in the unsatisfiable core
[2022-01-11 02:40:18,517 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:40:19,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:40:19,547 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-11 02:40:21,982 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:40:21,982 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:40:21,982 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759875335]
[2022-01-11 02:40:21,982 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:40:21,982 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857219755]
[2022-01-11 02:40:21,982 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [857219755] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-11 02:40:21,982 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-11 02:40:21,983 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 14
[2022-01-11 02:40:21,983 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132940871]
[2022-01-11 02:40:21,983 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-11 02:40:21,983 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-01-11 02:40:21,983 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:40:21,983 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-01-11 02:40:21,984 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2022-01-11 02:40:21,984 INFO  L87              Difference]: Start difference. First operand 64 states and 71 transitions. Second operand  has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 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)
[2022-01-11 02:40:27,119 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:29,124 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:31,194 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:33,200 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:36,279 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:41,436 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:43,439 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:43,449 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:40:43,450 INFO  L93              Difference]: Finished difference Result 129 states and 146 transitions.
[2022-01-11 02:40:43,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2022-01-11 02:40:43,450 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 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 25
[2022-01-11 02:40:43,450 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:40:43,451 INFO  L225             Difference]: With dead ends: 129
[2022-01-11 02:40:43,451 INFO  L226             Difference]: Without dead ends: 123
[2022-01-11 02:40:43,451 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702
[2022-01-11 02:40:43,452 INFO  L933         BasicCegarLoop]: 26 mSDtfsCounter, 223 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 101 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time
[2022-01-11 02:40:43,452 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 108 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 197 Invalid, 6 Unknown, 0 Unchecked, 18.0s Time]
[2022-01-11 02:40:43,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2022-01-11 02:40:43,460 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 88.
[2022-01-11 02:40:43,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 83 states have (on average 1.216867469879518) internal successors, (101), 87 states have internal predecessors, (101), 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)
[2022-01-11 02:40:43,461 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions.
[2022-01-11 02:40:43,461 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 25
[2022-01-11 02:40:43,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:40:43,461 INFO  L470      AbstractCegarLoop]: Abstraction has 88 states and 101 transitions.
[2022-01-11 02:40:43,461 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 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)
[2022-01-11 02:40:43,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions.
[2022-01-11 02:40:43,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2022-01-11 02:40:43,462 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:40:43,462 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 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]
[2022-01-11 02:40:43,479 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-01-11 02:40:43,663 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
[2022-01-11 02:40:43,663 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 02:40:43,663 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:40:43,663 INFO  L85        PathProgramCache]: Analyzing trace with hash 1998703169, now seen corresponding path program 1 times
[2022-01-11 02:40:43,664 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:40:43,664 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260297086]
[2022-01-11 02:40:43,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:43,664 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:40:43,676 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:40:43,676 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105241829]
[2022-01-11 02:40:43,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:40:43,676 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:40:43,676 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:40:43,680 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)
[2022-01-11 02:40:43,681 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-01-11 02:40:43,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:40:43,780 INFO  L263         TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-11 02:40:43,781 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:40:45,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-01-11 02:40:45,946 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 02:40:45,946 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:40:45,946 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260297086]
[2022-01-11 02:40:45,946 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:40:45,947 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105241829]
[2022-01-11 02:40:45,947 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [105241829] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 02:40:45,947 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 02:40:45,947 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-01-11 02:40:45,947 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123486993]
[2022-01-11 02:40:45,947 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 02:40:45,947 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-01-11 02:40:45,947 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:40:45,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-01-11 02:40:45,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-01-11 02:40:45,948 INFO  L87              Difference]: Start difference. First operand 88 states and 101 transitions. Second operand  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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)
[2022-01-11 02:40:49,233 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:51,235 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:55,603 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:40:57,606 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:41:01,367 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:41:01,367 INFO  L93              Difference]: Finished difference Result 170 states and 203 transitions.
[2022-01-11 02:41:01,368 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-01-11 02:41:01,368 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 37
[2022-01-11 02:41:01,368 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:41:01,368 INFO  L225             Difference]: With dead ends: 170
[2022-01-11 02:41:01,368 INFO  L226             Difference]: Without dead ends: 120
[2022-01-11 02:41:01,369 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=33, Invalid=56, Unknown=1, NotChecked=0, Total=90
[2022-01-11 02:41:01,369 INFO  L933         BasicCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 21 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time
[2022-01-11 02:41:01,370 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 73 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 58 Invalid, 4 Unknown, 26 Unchecked, 8.7s Time]
[2022-01-11 02:41:01,370 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2022-01-11 02:41:01,378 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 80.
[2022-01-11 02:41:01,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 78 states have (on average 1.141025641025641) internal successors, (89), 79 states have internal predecessors, (89), 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)
[2022-01-11 02:41:01,379 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions.
[2022-01-11 02:41:01,379 INFO  L78                 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 37
[2022-01-11 02:41:01,379 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:41:01,379 INFO  L470      AbstractCegarLoop]: Abstraction has 80 states and 89 transitions.
[2022-01-11 02:41:01,379 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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)
[2022-01-11 02:41:01,379 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions.
[2022-01-11 02:41:01,380 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2022-01-11 02:41:01,380 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:41:01,380 INFO  L514         BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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]
[2022-01-11 02:41:01,396 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-01-11 02:41:01,591 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
[2022-01-11 02:41:01,591 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 02:41:01,592 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:41:01,592 INFO  L85        PathProgramCache]: Analyzing trace with hash 1380000913, now seen corresponding path program 1 times
[2022-01-11 02:41:01,592 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:41:01,592 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577837438]
[2022-01-11 02:41:01,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:41:01,592 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:41:01,603 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:41:01,603 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002251106]
[2022-01-11 02:41:01,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:41:01,604 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:41:01,604 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:41:01,610 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)
[2022-01-11 02:41:01,612 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-01-11 02:41:03,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:41:03,230 INFO  L263         TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 49 conjunts are in the unsatisfiable core
[2022-01-11 02:41:03,232 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:41:29,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:41:29,890 INFO  L328         TraceCheckSpWp]: Computing backward predicates...