/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c


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


This is Ultimate 0.2.2-dev-e106359-m
[2022-04-14 21:42:15,833 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-14 21:42:15,835 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-14 21:42:15,879 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-14 21:42:15,879 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-14 21:42:15,880 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-14 21:42:15,881 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-14 21:42:15,883 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-14 21:42:15,884 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-14 21:42:15,886 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-04-14 21:42:15,888 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-14 21:42:15,889 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-14 21:42:15,890 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-14 21:42:15,891 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-14 21:42:15,891 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-14 21:42:15,892 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-14 21:42:15,893 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-14 21:42:15,894 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-14 21:42:15,907 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-14 21:42:15,909 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-14 21:42:15,909 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-14 21:42:15,910 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-14 21:42:15,911 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-14 21:42:15,913 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-14 21:42:15,913 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-14 21:42:15,914 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-14 21:42:15,914 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-14 21:42:15,915 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-14 21:42:15,915 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-14 21:42:15,916 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-14 21:42:15,916 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-14 21:42:15,917 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-14 21:42:15,917 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-14 21:42:15,918 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-14 21:42:15,918 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-14 21:42:15,919 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2022-04-14 21:42:15,924 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-04-14 21:42:15,927 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-14 21:42:15,928 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-04-14 21:42:15,940 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-14 21:42:15,940 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-14 21:42:15,941 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-14 21:42:15,942 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-14 21:42:15,942 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-14 21:42:15,942 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-14 21:42:15,942 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-14 21:42:15,942 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-14 21:42:15,942 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-14 21:42:15,943 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-14 21:42:15,943 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-14 21:42:15,943 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-14 21:42:15,943 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-14 21:42:15,944 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-14 21:42:15,944 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-14 21:42:15,944 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-04-14 21:42:15,944 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-04-14 21:42:15,944 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-14 21:42:15,944 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-14 21:42:15,944 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-14 21:42:15,944 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-04-14 21:42:15,945 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-04-14 21:42:15,945 INFO  L138        SettingsManager]:  * TransformationType=LOOP_ACCELERATION_JORDAN
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-14 21:42:16,172 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-14 21:42:16,193 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-14 21:42:16,194 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-14 21:42:16,196 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-14 21:42:16,196 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-14 21:42:16,197 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c
[2022-04-14 21:42:16,261 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a5292e/7acc7b97eaff48aabca647afcdd4d167/FLAGf3d738e1c
[2022-04-14 21:42:16,654 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-14 21:42:16,655 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c
[2022-04-14 21:42:16,663 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a5292e/7acc7b97eaff48aabca647afcdd4d167/FLAGf3d738e1c
[2022-04-14 21:42:17,074 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a5292e/7acc7b97eaff48aabca647afcdd4d167
[2022-04-14 21:42:17,076 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-14 21:42:17,077 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-04-14 21:42:17,079 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-14 21:42:17,080 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-14 21:42:17,082 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-14 21:42:17,083 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,084 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1bb18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17, skipping insertion in model container
[2022-04-14 21:42:17,084 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,090 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-14 21:42:17,101 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-14 21:42:17,245 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/geo1-ll_unwindbound20.c[546,559]
[2022-04-14 21:42:17,277 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-14 21:42:17,285 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-14 21:42:17,295 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/geo1-ll_unwindbound20.c[546,559]
[2022-04-14 21:42:17,300 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-14 21:42:17,312 INFO  L208         MainTranslator]: Completed translation
[2022-04-14 21:42:17,313 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17 WrapperNode
[2022-04-14 21:42:17,313 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-14 21:42:17,314 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-14 21:42:17,314 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-14 21:42:17,314 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-14 21:42:17,323 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,323 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,329 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,329 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,336 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,339 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,340 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,342 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-14 21:42:17,343 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-14 21:42:17,344 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-14 21:42:17,345 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-14 21:42:17,346 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,358 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-14 21:42:17,368 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-14 21:42:17,378 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)
[2022-04-14 21:42:17,380 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
[2022-04-14 21:42:17,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-14 21:42:17,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-14 21:42:17,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-14 21:42:17,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-14 21:42:17,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-14 21:42:17,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2022-04-14 21:42:17,407 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-14 21:42:17,408 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-14 21:42:17,408 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-14 21:42:17,408 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-14 21:42:17,408 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-14 21:42:17,408 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-14 21:42:17,464 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-14 21:42:17,465 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-14 21:42:17,583 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-14 21:42:17,590 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-14 21:42:17,590 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-14 21:42:17,591 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 09:42:17 BoogieIcfgContainer
[2022-04-14 21:42:17,592 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-14 21:42:17,592 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-04-14 21:42:17,592 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-04-14 21:42:17,593 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-04-14 21:42:17,596 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 09:42:17" (1/1) ...
[2022-04-14 21:42:17,598 INFO  L168   ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN
[2022-04-14 21:42:17,622 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 09:42:17 BasicIcfg
[2022-04-14 21:42:17,622 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-04-14 21:42:17,624 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-14 21:42:17,624 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-14 21:42:17,630 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-14 21:42:17,630 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 09:42:17" (1/4) ...
[2022-04-14 21:42:17,630 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec995fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 09:42:17, skipping insertion in model container
[2022-04-14 21:42:17,631 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:42:17" (2/4) ...
[2022-04-14 21:42:17,631 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec995fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 09:42:17, skipping insertion in model container
[2022-04-14 21:42:17,631 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 09:42:17" (3/4) ...
[2022-04-14 21:42:17,631 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec995fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 09:42:17, skipping insertion in model container
[2022-04-14 21:42:17,631 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 09:42:17" (4/4) ...
[2022-04-14 21:42:17,632 INFO  L111   eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound20.cJordan
[2022-04-14 21:42:17,636 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-04-14 21:42:17,637 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-14 21:42:17,681 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-14 21:42:17,702 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP
[2022-04-14 21:42:17,702 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-14 21:42:17,732 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 30 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-04-14 21:42:17,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-04-14 21:42:17,739 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-14 21:42:17,740 INFO  L499         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-14 21:42:17,741 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-14 21:42:17,752 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-14 21:42:17,753 INFO  L85        PathProgramCache]: Analyzing trace with hash -1175629711, now seen corresponding path program 1 times
[2022-04-14 21:42:17,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-14 21:42:17,763 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264137346]
[2022-04-14 21:42:17,763 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:17,765 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-14 21:42:17,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:17,986 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-14 21:42:18,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:18,018 INFO  L290        TraceCheckUtils]: 0: Hoare triple {46#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0)))  InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|}  OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|}  AuxVars[]  AssignedVars[~counter~0, #NULL.offset, #NULL.base] {33#true} is VALID
[2022-04-14 21:42:18,018 INFO  L290        TraceCheckUtils]: 1: Hoare triple {33#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {33#true} is VALID
[2022-04-14 21:42:18,019 INFO  L284        TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {33#true} is VALID
[2022-04-14 21:42:18,019 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-04-14 21:42:18,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:18,035 INFO  L290        TraceCheckUtils]: 0: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID
[2022-04-14 21:42:18,037 INFO  L290        TraceCheckUtils]: 1: Hoare triple {33#true} [75] L13-->L13-2: Formula: false  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,037 INFO  L290        TraceCheckUtils]: 2: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,037 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {34#false} {33#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {34#false} is VALID
[2022-04-14 21:42:18,039 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-04-14 21:42:18,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:18,055 INFO  L290        TraceCheckUtils]: 0: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID
[2022-04-14 21:42:18,056 INFO  L290        TraceCheckUtils]: 1: Hoare triple {33#true} [75] L13-->L13-2: Formula: false  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,056 INFO  L290        TraceCheckUtils]: 2: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,057 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {34#false} {34#false} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {34#false} is VALID
[2022-04-14 21:42:18,059 INFO  L272        TraceCheckUtils]: 0: Hoare triple {33#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {46#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID
[2022-04-14 21:42:18,060 INFO  L290        TraceCheckUtils]: 1: Hoare triple {46#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0)))  InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|}  OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|}  AuxVars[]  AssignedVars[~counter~0, #NULL.offset, #NULL.base] {33#true} is VALID
[2022-04-14 21:42:18,061 INFO  L290        TraceCheckUtils]: 2: Hoare triple {33#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {33#true} is VALID
[2022-04-14 21:42:18,061 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {33#true} is VALID
[2022-04-14 21:42:18,062 INFO  L272        TraceCheckUtils]: 4: Hoare triple {33#true} [66] L-1-->mainENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {33#true} is VALID
[2022-04-14 21:42:18,062 INFO  L290        TraceCheckUtils]: 5: Hoare triple {33#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|))  InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|}  OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2}  AuxVars[]  AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {33#true} is VALID
[2022-04-14 21:42:18,063 INFO  L272        TraceCheckUtils]: 6: Hoare triple {33#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {33#true} is VALID
[2022-04-14 21:42:18,063 INFO  L290        TraceCheckUtils]: 7: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID
[2022-04-14 21:42:18,069 INFO  L290        TraceCheckUtils]: 8: Hoare triple {33#true} [75] L13-->L13-2: Formula: false  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,070 INFO  L290        TraceCheckUtils]: 9: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,071 INFO  L284        TraceCheckUtils]: 10: Hoare quadruple {34#false} {33#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {34#false} is VALID
[2022-04-14 21:42:18,072 INFO  L272        TraceCheckUtils]: 11: Hoare triple {34#false} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#true} is VALID
[2022-04-14 21:42:18,072 INFO  L290        TraceCheckUtils]: 12: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID
[2022-04-14 21:42:18,073 INFO  L290        TraceCheckUtils]: 13: Hoare triple {33#true} [75] L13-->L13-2: Formula: false  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,073 INFO  L290        TraceCheckUtils]: 14: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,074 INFO  L284        TraceCheckUtils]: 15: Hoare quadruple {34#false} {34#false} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {34#false} is VALID
[2022-04-14 21:42:18,074 INFO  L290        TraceCheckUtils]: 16: Hoare triple {34#false} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1))  InVars {main_~z~0=v_main_~z~0_6}  OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6}  AuxVars[]  AssignedVars[main_~x~0, main_~c~0, main_~y~0] {34#false} is VALID
[2022-04-14 21:42:18,074 INFO  L290        TraceCheckUtils]: 17: Hoare triple {34#false} [77] L35-3-->L35-4: Formula: false  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,075 INFO  L290        TraceCheckUtils]: 18: Hoare triple {34#false} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1)))  InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1}  OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1}  AuxVars[]  AssignedVars[main_~x~0] {34#false} is VALID
[2022-04-14 21:42:18,075 INFO  L272        TraceCheckUtils]: 19: Hoare triple {34#false} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0))  InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {34#false} is VALID
[2022-04-14 21:42:18,076 INFO  L290        TraceCheckUtils]: 20: Hoare triple {34#false} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {34#false} is VALID
[2022-04-14 21:42:18,076 INFO  L290        TraceCheckUtils]: 21: Hoare triple {34#false} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0)  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,076 INFO  L290        TraceCheckUtils]: 22: Hoare triple {34#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {34#false} is VALID
[2022-04-14 21:42:18,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-14 21:42:18,078 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-14 21:42:18,078 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264137346]
[2022-04-14 21:42:18,079 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264137346] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-14 21:42:18,079 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-14 21:42:18,079 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-14 21:42:18,083 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731475086]
[2022-04-14 21:42:18,084 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-14 21:42:18,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2022-04-14 21:42:18,090 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-14 21:42:18,094 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:18,124 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:18,124 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-14 21:42:18,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-14 21:42:18,146 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-14 21:42:18,148 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-14 21:42:18,151 INFO  L87              Difference]: Start difference. First operand  has 30 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:18,297 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:18,298 INFO  L93              Difference]: Finished difference Result 31 states and 34 transitions.
[2022-04-14 21:42:18,298 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-14 21:42:18,298 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2022-04-14 21:42:18,299 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-14 21:42:18,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:18,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions.
[2022-04-14 21:42:18,309 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:18,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions.
[2022-04-14 21:42:18,315 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 38 transitions.
[2022-04-14 21:42:18,364 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:18,371 INFO  L225             Difference]: With dead ends: 31
[2022-04-14 21:42:18,371 INFO  L226             Difference]: Without dead ends: 26
[2022-04-14 21:42:18,373 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-14 21:42:18,376 INFO  L913         BasicCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-14 21:42:18,377 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-14 21:42:18,391 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2022-04-14 21:42:18,400 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25.
[2022-04-14 21:42:18,401 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-14 21:42:18,402 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand  has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-14 21:42:18,402 INFO  L74              IsIncluded]: Start isIncluded. First operand 26 states. Second operand  has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-14 21:42:18,403 INFO  L87              Difference]: Start difference. First operand 26 states. Second operand  has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-14 21:42:18,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:18,407 INFO  L93              Difference]: Finished difference Result 26 states and 29 transitions.
[2022-04-14 21:42:18,407 INFO  L276                IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions.
[2022-04-14 21:42:18,407 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:18,407 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:18,408 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states.
[2022-04-14 21:42:18,408 INFO  L87              Difference]: Start difference. First operand  has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states.
[2022-04-14 21:42:18,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:18,412 INFO  L93              Difference]: Finished difference Result 26 states and 29 transitions.
[2022-04-14 21:42:18,412 INFO  L276                IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions.
[2022-04-14 21:42:18,412 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:18,412 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:18,413 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-14 21:42:18,413 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-14 21:42:18,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-14 21:42:18,415 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions.
[2022-04-14 21:42:18,416 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 23
[2022-04-14 21:42:18,416 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-14 21:42:18,416 INFO  L478      AbstractCegarLoop]: Abstraction has 25 states and 28 transitions.
[2022-04-14 21:42:18,417 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:18,417 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions.
[2022-04-14 21:42:18,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-04-14 21:42:18,418 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-14 21:42:18,418 INFO  L499         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-14 21:42:18,418 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-14 21:42:18,418 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-14 21:42:18,419 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-14 21:42:18,419 INFO  L85        PathProgramCache]: Analyzing trace with hash 165914577, now seen corresponding path program 1 times
[2022-04-14 21:42:18,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-14 21:42:18,419 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990470619]
[2022-04-14 21:42:18,419 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:18,420 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-14 21:42:18,440 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-14 21:42:18,440 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40093110]
[2022-04-14 21:42:18,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:18,441 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-14 21:42:18,441 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-14 21:42:18,442 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)
[2022-04-14 21:42:18,475 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-14 21:42:18,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:18,514 INFO  L263         TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-04-14 21:42:18,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:18,538 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-14 21:42:18,715 INFO  L272        TraceCheckUtils]: 0: Hoare triple {157#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,715 INFO  L290        TraceCheckUtils]: 1: Hoare triple {157#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0)))  InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|}  OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|}  AuxVars[]  AssignedVars[~counter~0, #NULL.offset, #NULL.base] {157#true} is VALID
[2022-04-14 21:42:18,715 INFO  L290        TraceCheckUtils]: 2: Hoare triple {157#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,716 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {157#true} {157#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,716 INFO  L272        TraceCheckUtils]: 4: Hoare triple {157#true} [66] L-1-->mainENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,716 INFO  L290        TraceCheckUtils]: 5: Hoare triple {157#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|))  InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|}  OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2}  AuxVars[]  AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {157#true} is VALID
[2022-04-14 21:42:18,716 INFO  L272        TraceCheckUtils]: 6: Hoare triple {157#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {157#true} is VALID
[2022-04-14 21:42:18,716 INFO  L290        TraceCheckUtils]: 7: Hoare triple {157#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {157#true} is VALID
[2022-04-14 21:42:18,717 INFO  L290        TraceCheckUtils]: 8: Hoare triple {157#true} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,717 INFO  L290        TraceCheckUtils]: 9: Hoare triple {157#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,717 INFO  L284        TraceCheckUtils]: 10: Hoare quadruple {157#true} {157#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {157#true} is VALID
[2022-04-14 21:42:18,717 INFO  L272        TraceCheckUtils]: 11: Hoare triple {157#true} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {157#true} is VALID
[2022-04-14 21:42:18,718 INFO  L290        TraceCheckUtils]: 12: Hoare triple {157#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {157#true} is VALID
[2022-04-14 21:42:18,718 INFO  L290        TraceCheckUtils]: 13: Hoare triple {157#true} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,718 INFO  L290        TraceCheckUtils]: 14: Hoare triple {157#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {157#true} is VALID
[2022-04-14 21:42:18,718 INFO  L284        TraceCheckUtils]: 15: Hoare quadruple {157#true} {157#true} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {157#true} is VALID
[2022-04-14 21:42:18,719 INFO  L290        TraceCheckUtils]: 16: Hoare triple {157#true} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1))  InVars {main_~z~0=v_main_~z~0_6}  OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6}  AuxVars[]  AssignedVars[main_~x~0, main_~c~0, main_~y~0] {210#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID
[2022-04-14 21:42:18,720 INFO  L290        TraceCheckUtils]: 17: Hoare triple {210#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1)))  InVars {~counter~0=v_~counter~0_2}  OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|}  AuxVars[]  AssignedVars[~counter~0, main_#t~post6] {210#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID
[2022-04-14 21:42:18,720 INFO  L290        TraceCheckUtils]: 18: Hoare triple {210#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} [82] L35-1-->L36: Formula: (< |v_main_#t~post6_5| 20)  InVars {main_#t~post6=|v_main_#t~post6_5|}  OutVars{}  AuxVars[]  AssignedVars[main_#t~post6] {210#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID
[2022-04-14 21:42:18,721 INFO  L272        TraceCheckUtils]: 19: Hoare triple {210#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} [84] L36-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|)  InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {220#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-14 21:42:18,722 INFO  L290        TraceCheckUtils]: 20: Hoare triple {220#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {224#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-14 21:42:18,722 INFO  L290        TraceCheckUtils]: 21: Hoare triple {224#(<= 1 __VERIFIER_assert_~cond)} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0)  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  AuxVars[]  AssignedVars[] {158#false} is VALID
[2022-04-14 21:42:18,722 INFO  L290        TraceCheckUtils]: 22: Hoare triple {158#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {158#false} is VALID
[2022-04-14 21:42:18,723 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-14 21:42:18,723 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-14 21:42:18,723 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-14 21:42:18,723 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990470619]
[2022-04-14 21:42:18,724 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-14 21:42:18,724 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40093110]
[2022-04-14 21:42:18,724 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [40093110] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-14 21:42:18,724 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-14 21:42:18,724 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-14 21:42:18,725 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452747007]
[2022-04-14 21:42:18,725 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-14 21:42:18,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23
[2022-04-14 21:42:18,726 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-14 21:42:18,726 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-14 21:42:18,744 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:18,744 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-14 21:42:18,744 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-14 21:42:18,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-14 21:42:18,745 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-04-14 21:42:18,745 INFO  L87              Difference]: Start difference. First operand 25 states and 28 transitions. Second operand  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-14 21:42:18,882 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:18,882 INFO  L93              Difference]: Finished difference Result 34 states and 39 transitions.
[2022-04-14 21:42:18,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-14 21:42:18,883 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23
[2022-04-14 21:42:18,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-14 21:42:18,884 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-14 21:42:18,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions.
[2022-04-14 21:42:18,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-14 21:42:18,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions.
[2022-04-14 21:42:18,898 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 40 transitions.
[2022-04-14 21:42:18,936 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:18,939 INFO  L225             Difference]: With dead ends: 34
[2022-04-14 21:42:18,940 INFO  L226             Difference]: Without dead ends: 34
[2022-04-14 21:42:18,940 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-04-14 21:42:18,942 INFO  L913         BasicCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-14 21:42:18,943 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 88 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-14 21:42:18,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2022-04-14 21:42:18,950 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32.
[2022-04-14 21:42:18,950 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-14 21:42:18,950 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand  has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:18,951 INFO  L74              IsIncluded]: Start isIncluded. First operand 34 states. Second operand  has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:18,952 INFO  L87              Difference]: Start difference. First operand 34 states. Second operand  has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:18,955 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:18,956 INFO  L93              Difference]: Finished difference Result 34 states and 39 transitions.
[2022-04-14 21:42:18,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions.
[2022-04-14 21:42:18,957 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:18,957 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:18,959 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states.
[2022-04-14 21:42:18,960 INFO  L87              Difference]: Start difference. First operand  has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states.
[2022-04-14 21:42:18,966 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:18,967 INFO  L93              Difference]: Finished difference Result 34 states and 39 transitions.
[2022-04-14 21:42:18,967 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions.
[2022-04-14 21:42:18,968 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:18,969 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:18,969 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-14 21:42:18,969 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-14 21:42:18,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:18,976 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions.
[2022-04-14 21:42:18,976 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23
[2022-04-14 21:42:18,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-14 21:42:18,977 INFO  L478      AbstractCegarLoop]: Abstraction has 32 states and 36 transitions.
[2022-04-14 21:42:18,978 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-14 21:42:18,980 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions.
[2022-04-14 21:42:18,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2022-04-14 21:42:18,984 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-14 21:42:18,984 INFO  L499         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-14 21:42:19,005 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-04-14 21:42:19,199 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-14 21:42:19,200 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-14 21:42:19,200 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-14 21:42:19,200 INFO  L85        PathProgramCache]: Analyzing trace with hash 815968169, now seen corresponding path program 1 times
[2022-04-14 21:42:19,200 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-14 21:42:19,201 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385466225]
[2022-04-14 21:42:19,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:19,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-14 21:42:19,216 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-14 21:42:19,216 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460375265]
[2022-04-14 21:42:19,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:19,217 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-14 21:42:19,217 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-14 21:42:19,225 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)
[2022-04-14 21:42:19,227 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-14 21:42:19,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:19,278 INFO  L263         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-04-14 21:42:19,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:19,300 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-14 21:42:19,488 INFO  L272        TraceCheckUtils]: 0: Hoare triple {366#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {366#true} is VALID
[2022-04-14 21:42:19,492 INFO  L290        TraceCheckUtils]: 1: Hoare triple {366#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0)))  InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|}  OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|}  AuxVars[]  AssignedVars[~counter~0, #NULL.offset, #NULL.base] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,493 INFO  L290        TraceCheckUtils]: 2: Hoare triple {374#(<= ~counter~0 0)} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,494 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {374#(<= ~counter~0 0)} {366#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,495 INFO  L272        TraceCheckUtils]: 4: Hoare triple {374#(<= ~counter~0 0)} [66] L-1-->mainENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,495 INFO  L290        TraceCheckUtils]: 5: Hoare triple {374#(<= ~counter~0 0)} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|))  InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|}  OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2}  AuxVars[]  AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,496 INFO  L272        TraceCheckUtils]: 6: Hoare triple {374#(<= ~counter~0 0)} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,496 INFO  L290        TraceCheckUtils]: 7: Hoare triple {374#(<= ~counter~0 0)} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,497 INFO  L290        TraceCheckUtils]: 8: Hoare triple {374#(<= ~counter~0 0)} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,497 INFO  L290        TraceCheckUtils]: 9: Hoare triple {374#(<= ~counter~0 0)} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,498 INFO  L284        TraceCheckUtils]: 10: Hoare quadruple {374#(<= ~counter~0 0)} {374#(<= ~counter~0 0)} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,499 INFO  L272        TraceCheckUtils]: 11: Hoare triple {374#(<= ~counter~0 0)} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,500 INFO  L290        TraceCheckUtils]: 12: Hoare triple {374#(<= ~counter~0 0)} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,500 INFO  L290        TraceCheckUtils]: 13: Hoare triple {374#(<= ~counter~0 0)} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,501 INFO  L290        TraceCheckUtils]: 14: Hoare triple {374#(<= ~counter~0 0)} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,501 INFO  L284        TraceCheckUtils]: 15: Hoare quadruple {374#(<= ~counter~0 0)} {374#(<= ~counter~0 0)} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,502 INFO  L290        TraceCheckUtils]: 16: Hoare triple {374#(<= ~counter~0 0)} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1))  InVars {main_~z~0=v_main_~z~0_6}  OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6}  AuxVars[]  AssignedVars[main_~x~0, main_~c~0, main_~y~0] {374#(<= ~counter~0 0)} is VALID
[2022-04-14 21:42:19,502 INFO  L290        TraceCheckUtils]: 17: Hoare triple {374#(<= ~counter~0 0)} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1)))  InVars {~counter~0=v_~counter~0_2}  OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|}  AuxVars[]  AssignedVars[~counter~0, main_#t~post6] {423#(<= |main_#t~post6| 0)} is VALID
[2022-04-14 21:42:19,503 INFO  L290        TraceCheckUtils]: 18: Hoare triple {423#(<= |main_#t~post6| 0)} [81] L35-1-->L35-4: Formula: (not (< |v_main_#t~post6_3| 20))  InVars {main_#t~post6=|v_main_#t~post6_3|}  OutVars{}  AuxVars[]  AssignedVars[main_#t~post6] {367#false} is VALID
[2022-04-14 21:42:19,503 INFO  L290        TraceCheckUtils]: 19: Hoare triple {367#false} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1)))  InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1}  OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1}  AuxVars[]  AssignedVars[main_~x~0] {367#false} is VALID
[2022-04-14 21:42:19,503 INFO  L272        TraceCheckUtils]: 20: Hoare triple {367#false} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0))  InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {367#false} is VALID
[2022-04-14 21:42:19,503 INFO  L290        TraceCheckUtils]: 21: Hoare triple {367#false} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {367#false} is VALID
[2022-04-14 21:42:19,504 INFO  L290        TraceCheckUtils]: 22: Hoare triple {367#false} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0)  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  AuxVars[]  AssignedVars[] {367#false} is VALID
[2022-04-14 21:42:19,504 INFO  L290        TraceCheckUtils]: 23: Hoare triple {367#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {367#false} is VALID
[2022-04-14 21:42:19,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-14 21:42:19,504 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-14 21:42:19,504 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-14 21:42:19,505 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385466225]
[2022-04-14 21:42:19,505 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-14 21:42:19,505 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460375265]
[2022-04-14 21:42:19,505 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460375265] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-14 21:42:19,505 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-14 21:42:19,505 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-14 21:42:19,506 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417781399]
[2022-04-14 21:42:19,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-14 21:42:19,506 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2022-04-14 21:42:19,506 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-14 21:42:19,507 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:19,525 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:19,525 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-14 21:42:19,525 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-14 21:42:19,525 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-14 21:42:19,526 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-14 21:42:19,526 INFO  L87              Difference]: Start difference. First operand 32 states and 36 transitions. Second operand  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:19,591 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:19,591 INFO  L93              Difference]: Finished difference Result 32 states and 35 transitions.
[2022-04-14 21:42:19,591 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-04-14 21:42:19,591 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2022-04-14 21:42:19,592 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-14 21:42:19,592 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:19,593 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions.
[2022-04-14 21:42:19,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:19,598 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions.
[2022-04-14 21:42:19,598 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 31 transitions.
[2022-04-14 21:42:19,622 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:19,629 INFO  L225             Difference]: With dead ends: 32
[2022-04-14 21:42:19,629 INFO  L226             Difference]: Without dead ends: 32
[2022-04-14 21:42:19,630 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-14 21:42:19,632 INFO  L913         BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-14 21:42:19,633 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-14 21:42:19,633 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2022-04-14 21:42:19,636 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2022-04-14 21:42:19,636 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-14 21:42:19,636 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand  has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:19,637 INFO  L74              IsIncluded]: Start isIncluded. First operand 32 states. Second operand  has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:19,637 INFO  L87              Difference]: Start difference. First operand 32 states. Second operand  has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:19,639 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:19,639 INFO  L93              Difference]: Finished difference Result 32 states and 35 transitions.
[2022-04-14 21:42:19,639 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2022-04-14 21:42:19,639 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:19,640 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:19,640 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states.
[2022-04-14 21:42:19,640 INFO  L87              Difference]: Start difference. First operand  has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states.
[2022-04-14 21:42:19,642 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:19,642 INFO  L93              Difference]: Finished difference Result 32 states and 35 transitions.
[2022-04-14 21:42:19,642 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2022-04-14 21:42:19,642 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:19,643 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:19,643 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-14 21:42:19,643 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-14 21:42:19,643 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-14 21:42:19,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2022-04-14 21:42:19,645 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24
[2022-04-14 21:42:19,645 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-14 21:42:19,645 INFO  L478      AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2022-04-14 21:42:19,645 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-14 21:42:19,645 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2022-04-14 21:42:19,646 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2022-04-14 21:42:19,646 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-14 21:42:19,646 INFO  L499         BasicCegarLoop]: trace histogram [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]
[2022-04-14 21:42:19,667 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-04-14 21:42:19,859 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-04-14 21:42:19,860 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-14 21:42:19,860 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-14 21:42:19,860 INFO  L85        PathProgramCache]: Analyzing trace with hash -974402257, now seen corresponding path program 1 times
[2022-04-14 21:42:19,860 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-14 21:42:19,860 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258365577]
[2022-04-14 21:42:19,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:19,861 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-14 21:42:19,881 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-14 21:42:19,881 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108213885]
[2022-04-14 21:42:19,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-14 21:42:19,882 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-14 21:42:19,882 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-14 21:42:19,883 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)
[2022-04-14 21:42:19,902 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-14 21:42:19,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:19,940 INFO  L263         TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-04-14 21:42:19,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-14 21:42:19,958 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-14 21:42:22,631 INFO  L272        TraceCheckUtils]: 0: Hoare triple {569#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,631 INFO  L290        TraceCheckUtils]: 1: Hoare triple {569#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0)))  InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|}  OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|}  AuxVars[]  AssignedVars[~counter~0, #NULL.offset, #NULL.base] {569#true} is VALID
[2022-04-14 21:42:22,631 INFO  L290        TraceCheckUtils]: 2: Hoare triple {569#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,631 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {569#true} {569#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,632 INFO  L272        TraceCheckUtils]: 4: Hoare triple {569#true} [66] L-1-->mainENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,632 INFO  L290        TraceCheckUtils]: 5: Hoare triple {569#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|))  InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|}  OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2}  AuxVars[]  AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {569#true} is VALID
[2022-04-14 21:42:22,632 INFO  L272        TraceCheckUtils]: 6: Hoare triple {569#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:22,632 INFO  L290        TraceCheckUtils]: 7: Hoare triple {569#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {569#true} is VALID
[2022-04-14 21:42:22,632 INFO  L290        TraceCheckUtils]: 8: Hoare triple {569#true} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,632 INFO  L290        TraceCheckUtils]: 9: Hoare triple {569#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,633 INFO  L284        TraceCheckUtils]: 10: Hoare quadruple {569#true} {569#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:22,633 INFO  L272        TraceCheckUtils]: 11: Hoare triple {569#true} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:22,633 INFO  L290        TraceCheckUtils]: 12: Hoare triple {569#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {569#true} is VALID
[2022-04-14 21:42:22,633 INFO  L290        TraceCheckUtils]: 13: Hoare triple {569#true} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,633 INFO  L290        TraceCheckUtils]: 14: Hoare triple {569#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:22,633 INFO  L284        TraceCheckUtils]: 15: Hoare quadruple {569#true} {569#true} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:22,634 INFO  L290        TraceCheckUtils]: 16: Hoare triple {569#true} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1))  InVars {main_~z~0=v_main_~z~0_6}  OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6}  AuxVars[]  AssignedVars[main_~x~0, main_~c~0, main_~y~0] {569#true} is VALID
[2022-04-14 21:42:22,634 INFO  L290        TraceCheckUtils]: 17: Hoare triple {569#true} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1)))  InVars {~counter~0=v_~counter~0_2}  OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|}  AuxVars[]  AssignedVars[~counter~0, main_#t~post6] {569#true} is VALID
[2022-04-14 21:42:22,634 INFO  L290        TraceCheckUtils]: 18: Hoare triple {569#true} [82] L35-1-->L36: Formula: (< |v_main_#t~post6_5| 20)  InVars {main_#t~post6=|v_main_#t~post6_5|}  OutVars{}  AuxVars[]  AssignedVars[main_#t~post6] {569#true} is VALID
[2022-04-14 21:42:22,634 INFO  L272        TraceCheckUtils]: 19: Hoare triple {569#true} [84] L36-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|)  InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {569#true} is VALID
[2022-04-14 21:42:22,635 INFO  L290        TraceCheckUtils]: 20: Hoare triple {569#true} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {634#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID
[2022-04-14 21:42:22,635 INFO  L290        TraceCheckUtils]: 21: Hoare triple {634#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [91] L16-->L16-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0))  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1}  AuxVars[]  AssignedVars[] {638#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-14 21:42:22,636 INFO  L290        TraceCheckUtils]: 22: Hoare triple {638#(not (= |__VERIFIER_assert_#in~cond| 0))} [94] L16-2-->__VERIFIER_assertEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {638#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-14 21:42:22,637 INFO  L284        TraceCheckUtils]: 23: Hoare quadruple {638#(not (= |__VERIFIER_assert_#in~cond| 0))} {569#true} [99] __VERIFIER_assertEXIT-->L36-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|)  InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID
[2022-04-14 21:42:22,637 INFO  L290        TraceCheckUtils]: 24: Hoare triple {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [87] L36-1-->L35-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5))  InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5}  OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5}  AuxVars[]  AssignedVars[] {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID
[2022-04-14 21:42:22,638 INFO  L290        TraceCheckUtils]: 25: Hoare triple {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1)))  InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1}  OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1}  AuxVars[]  AssignedVars[main_~x~0] {652#(exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0)))))} is VALID
[2022-04-14 21:42:22,639 INFO  L272        TraceCheckUtils]: 26: Hoare triple {652#(exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0)))))} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0))  InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {656#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-14 21:42:22,640 INFO  L290        TraceCheckUtils]: 27: Hoare triple {656#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {660#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-14 21:42:22,640 INFO  L290        TraceCheckUtils]: 28: Hoare triple {660#(<= 1 __VERIFIER_assert_~cond)} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0)  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  AuxVars[]  AssignedVars[] {570#false} is VALID
[2022-04-14 21:42:22,641 INFO  L290        TraceCheckUtils]: 29: Hoare triple {570#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {570#false} is VALID
[2022-04-14 21:42:22,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-14 21:42:22,641 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-14 21:42:25,399 INFO  L290        TraceCheckUtils]: 29: Hoare triple {570#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {570#false} is VALID
[2022-04-14 21:42:25,400 INFO  L290        TraceCheckUtils]: 28: Hoare triple {660#(<= 1 __VERIFIER_assert_~cond)} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0)  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3}  AuxVars[]  AssignedVars[] {570#false} is VALID
[2022-04-14 21:42:25,403 INFO  L290        TraceCheckUtils]: 27: Hoare triple {656#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {660#(<= 1 __VERIFIER_assert_~cond)} is VALID
[2022-04-14 21:42:25,405 INFO  L272        TraceCheckUtils]: 26: Hoare triple {676#(= (+ main_~x~0 1) main_~y~0)} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0))  InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {656#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID
[2022-04-14 21:42:25,406 INFO  L290        TraceCheckUtils]: 25: Hoare triple {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1)))  InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1}  OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1}  AuxVars[]  AssignedVars[main_~x~0] {676#(= (+ main_~x~0 1) main_~y~0)} is VALID
[2022-04-14 21:42:25,406 INFO  L290        TraceCheckUtils]: 24: Hoare triple {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [87] L36-1-->L35-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5))  InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5}  OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5}  AuxVars[]  AssignedVars[] {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID
[2022-04-14 21:42:25,408 INFO  L284        TraceCheckUtils]: 23: Hoare quadruple {638#(not (= |__VERIFIER_assert_#in~cond| 0))} {569#true} [99] __VERIFIER_assertEXIT-->L36-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|)  InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {645#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID
[2022-04-14 21:42:25,409 INFO  L290        TraceCheckUtils]: 22: Hoare triple {638#(not (= |__VERIFIER_assert_#in~cond| 0))} [94] L16-2-->__VERIFIER_assertEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {638#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-14 21:42:25,410 INFO  L290        TraceCheckUtils]: 21: Hoare triple {695#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [91] L16-->L16-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0))  InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1}  OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1}  AuxVars[]  AssignedVars[] {638#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID
[2022-04-14 21:42:25,412 INFO  L290        TraceCheckUtils]: 20: Hoare triple {569#true} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|)  InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2}  AuxVars[]  AssignedVars[__VERIFIER_assert_~cond] {695#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID
[2022-04-14 21:42:25,413 INFO  L272        TraceCheckUtils]: 19: Hoare triple {569#true} [84] L36-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|)  InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10}  OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|}  AuxVars[]  AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {569#true} is VALID
[2022-04-14 21:42:25,423 INFO  L290        TraceCheckUtils]: 18: Hoare triple {569#true} [82] L35-1-->L36: Formula: (< |v_main_#t~post6_5| 20)  InVars {main_#t~post6=|v_main_#t~post6_5|}  OutVars{}  AuxVars[]  AssignedVars[main_#t~post6] {569#true} is VALID
[2022-04-14 21:42:25,423 INFO  L290        TraceCheckUtils]: 17: Hoare triple {569#true} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1)))  InVars {~counter~0=v_~counter~0_2}  OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|}  AuxVars[]  AssignedVars[~counter~0, main_#t~post6] {569#true} is VALID
[2022-04-14 21:42:25,424 INFO  L290        TraceCheckUtils]: 16: Hoare triple {569#true} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1))  InVars {main_~z~0=v_main_~z~0_6}  OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6}  AuxVars[]  AssignedVars[main_~x~0, main_~c~0, main_~y~0] {569#true} is VALID
[2022-04-14 21:42:25,424 INFO  L284        TraceCheckUtils]: 15: Hoare quadruple {569#true} {569#true} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:25,424 INFO  L290        TraceCheckUtils]: 14: Hoare triple {569#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,424 INFO  L290        TraceCheckUtils]: 13: Hoare triple {569#true} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,424 INFO  L290        TraceCheckUtils]: 12: Hoare triple {569#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L272        TraceCheckUtils]: 11: Hoare triple {569#true} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0))  InVars {main_~k~0=v_main_~k~0_7}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|}  AuxVars[]  AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L284        TraceCheckUtils]: 10: Hoare quadruple {569#true} {569#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L290        TraceCheckUtils]: 9: Hoare triple {569#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L290        TraceCheckUtils]: 8: Hoare triple {569#true} [76] L13-->L13-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0))  InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L290        TraceCheckUtils]: 7: Hoare triple {569#true} [73] assume_abort_if_notENTRY-->L13: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1)  InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1}  AuxVars[]  AssignedVars[assume_abort_if_not_~cond] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L272        TraceCheckUtils]: 6: Hoare triple {569#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|)  InVars {main_~z~0=v_main_~z~0_9}  OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|}  AuxVars[]  AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {569#true} is VALID
[2022-04-14 21:42:25,425 INFO  L290        TraceCheckUtils]: 5: Hoare triple {569#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|))  InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|}  OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2}  AuxVars[]  AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {569#true} is VALID
[2022-04-14 21:42:25,426 INFO  L272        TraceCheckUtils]: 4: Hoare triple {569#true} [66] L-1-->mainENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,426 INFO  L284        TraceCheckUtils]: 3: Hoare quadruple {569#true} {569#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] LVA: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,426 INFO  L290        TraceCheckUtils]: 2: Hoare triple {569#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,426 INFO  L290        TraceCheckUtils]: 1: Hoare triple {569#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0)))  InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|}  OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|}  AuxVars[]  AssignedVars[~counter~0, #NULL.offset, #NULL.base] {569#true} is VALID
[2022-04-14 21:42:25,426 INFO  L272        TraceCheckUtils]: 0: Hoare triple {569#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[] {569#true} is VALID
[2022-04-14 21:42:25,427 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-14 21:42:25,427 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-14 21:42:25,427 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258365577]
[2022-04-14 21:42:25,427 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-14 21:42:25,427 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108213885]
[2022-04-14 21:42:25,427 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108213885] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-14 21:42:25,427 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-14 21:42:25,427 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2022-04-14 21:42:25,428 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260449852]
[2022-04-14 21:42:25,428 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-14 21:42:25,428 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30
[2022-04-14 21:42:25,429 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2022-04-14 21:42:25,429 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2022-04-14 21:42:25,458 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:25,458 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-04-14 21:42:25,459 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-14 21:42:25,459 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-04-14 21:42:25,459 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2022-04-14 21:42:25,460 INFO  L87              Difference]: Start difference. First operand 32 states and 35 transitions. Second operand  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2022-04-14 21:42:25,687 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:25,687 INFO  L93              Difference]: Finished difference Result 30 states and 33 transitions.
[2022-04-14 21:42:25,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-04-14 21:42:25,687 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30
[2022-04-14 21:42:25,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-14 21:42:25,688 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2022-04-14 21:42:25,689 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 27 transitions.
[2022-04-14 21:42:25,689 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2022-04-14 21:42:25,690 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 27 transitions.
[2022-04-14 21:42:25,690 INFO  L86        InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 27 transitions.
[2022-04-14 21:42:25,738 INFO  L122       InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2022-04-14 21:42:25,738 INFO  L225             Difference]: With dead ends: 30
[2022-04-14 21:42:25,738 INFO  L226             Difference]: Without dead ends: 0
[2022-04-14 21:42:25,739 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2022-04-14 21:42:25,740 INFO  L913         BasicCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-14 21:42:25,740 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 122 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 8 Unchecked, 0.1s Time]
[2022-04-14 21:42:25,740 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-04-14 21:42:25,741 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-04-14 21:42:25,741 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-14 21:42:25,741 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2022-04-14 21:42:25,741 INFO  L74              IsIncluded]: Start isIncluded. First operand 0 states. Second operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2022-04-14 21:42:25,741 INFO  L87              Difference]: Start difference. First operand 0 states. Second operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2022-04-14 21:42:25,741 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:25,741 INFO  L93              Difference]: Finished difference Result 0 states and 0 transitions.
[2022-04-14 21:42:25,741 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-14 21:42:25,741 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:25,741 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:25,741 INFO  L74              IsIncluded]: Start isIncluded. First operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 0 states.
[2022-04-14 21:42:25,742 INFO  L87              Difference]: Start difference. First operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 0 states.
[2022-04-14 21:42:25,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-14 21:42:25,742 INFO  L93              Difference]: Finished difference Result 0 states and 0 transitions.
[2022-04-14 21:42:25,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-14 21:42:25,742 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:25,742 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2022-04-14 21:42:25,742 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2022-04-14 21:42:25,742 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-14 21:42:25,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2022-04-14 21:42:25,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-04-14 21:42:25,742 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30
[2022-04-14 21:42:25,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-14 21:42:25,743 INFO  L478      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-04-14 21:42:25,743 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2022-04-14 21:42:25,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-14 21:42:25,743 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-14 21:42:25,746 INFO  L788   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-14 21:42:25,768 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-14 21:42:25,955 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-14 21:42:25,958 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-04-14 21:42:25,959 INFO  L177   ceAbstractionStarter]: Computing trace abstraction results
[2022-04-14 21:42:25,962 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 09:42:25 BasicIcfg
[2022-04-14 21:42:25,962 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-14 21:42:25,963 INFO  L158              Benchmark]: Toolchain (without parser) took 8885.59ms. Allocated memory was 192.9MB in the beginning and 233.8MB in the end (delta: 40.9MB). Free memory was 139.5MB in the beginning and 180.7MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-14 21:42:25,963 INFO  L158              Benchmark]: CDTParser took 0.11ms. Allocated memory is still 192.9MB. Free memory was 155.6MB in the beginning and 155.5MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-14 21:42:25,963 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 233.71ms. Allocated memory was 192.9MB in the beginning and 233.8MB in the end (delta: 40.9MB). Free memory was 139.3MB in the beginning and 207.5MB in the end (delta: -68.2MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB.
[2022-04-14 21:42:25,964 INFO  L158              Benchmark]: Boogie Preprocessor took 28.26ms. Allocated memory is still 233.8MB. Free memory was 207.5MB in the beginning and 206.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-14 21:42:25,964 INFO  L158              Benchmark]: RCFGBuilder took 249.08ms. Allocated memory is still 233.8MB. Free memory was 206.1MB in the beginning and 194.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-04-14 21:42:25,964 INFO  L158              Benchmark]: IcfgTransformer took 30.20ms. Allocated memory is still 233.8MB. Free memory was 194.8MB in the beginning and 193.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-14 21:42:25,964 INFO  L158              Benchmark]: TraceAbstraction took 8337.95ms. Allocated memory is still 233.8MB. Free memory was 192.7MB in the beginning and 180.7MB in the end (delta: 12.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2022-04-14 21:42:25,970 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - AssertionsEnabledResult: Assertions are enabled
    Assertions are enabled
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11ms. Allocated memory is still 192.9MB. Free memory was 155.6MB in the beginning and 155.5MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 233.71ms. Allocated memory was 192.9MB in the beginning and 233.8MB in the end (delta: 40.9MB). Free memory was 139.3MB in the beginning and 207.5MB in the end (delta: -68.2MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 28.26ms. Allocated memory is still 233.8MB. Free memory was 207.5MB in the beginning and 206.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 249.08ms. Allocated memory is still 233.8MB. Free memory was 206.1MB in the beginning and 194.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
 * IcfgTransformer took 30.20ms. Allocated memory is still 233.8MB. Free memory was 194.8MB in the beginning and 193.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * TraceAbstraction took 8337.95ms. Allocated memory is still 233.8MB. Free memory was 192.7MB in the beginning and 180.7MB in the end (delta: 12.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 18]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 8 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 101 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 125 ConstructedInterpolants, 1 QuantifiedInterpolants, 272 SizeOfPredicates, 5 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 22/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-04-14 21:42:25,988 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...