./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5fbdf5bf
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de740cb7316ae9c63e2c3ee48446f6a3df9739b5
........................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b
[2021-08-29 13:14:17,748 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-08-29 13:14:17,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-08-29 13:14:17,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-08-29 13:14:17,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-29 13:14:17,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-08-29 13:14:17,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-08-29 13:14:17,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-08-29 13:14:17,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-08-29 13:14:17,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-08-29 13:14:17,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-08-29 13:14:17,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-08-29 13:14:17,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-08-29 13:14:17,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-08-29 13:14:17,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-29 13:14:17,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-29 13:14:17,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-29 13:14:17,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-29 13:14:17,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-29 13:14:17,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-29 13:14:17,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-29 13:14:17,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-29 13:14:17,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-08-29 13:14:17,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-29 13:14:17,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-08-29 13:14:17,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-08-29 13:14:17,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-29 13:14:17,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-29 13:14:17,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-08-29 13:14:17,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-08-29 13:14:17,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-08-29 13:14:17,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-08-29 13:14:17,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-08-29 13:14:17,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-29 13:14:17,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-29 13:14:17,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-29 13:14:17,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-08-29 13:14:17,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-08-29 13:14:17,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-08-29 13:14:17,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-08-29 13:14:17,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-08-29 13:14:17,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-08-29 13:14:17,888 INFO L113 SettingsManager]: Loading preferences was successful
[2021-08-29 13:14:17,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-29 13:14:17,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-29 13:14:17,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-29 13:14:17,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-29 13:14:17,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-08-29 13:14:17,892 INFO L138 SettingsManager]: * Use SBE=true
[2021-08-29 13:14:17,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-29 13:14:17,892 INFO L138 SettingsManager]: * sizeof long=4
[2021-08-29 13:14:17,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-08-29 13:14:17,893 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-08-29 13:14:17,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-08-29 13:14:17,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-08-29 13:14:17,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-08-29 13:14:17,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-08-29 13:14:17,899 INFO L138 SettingsManager]: * sizeof long double=12
[2021-08-29 13:14:17,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-08-29 13:14:17,900 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-08-29 13:14:17,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-08-29 13:14:17,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-29 13:14:17,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-08-29 13:14:17,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-08-29 13:14:17,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-29 13:14:17,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-29 13:14:17,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-08-29 13:14:17,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-08-29 13:14:17,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-08-29 13:14:17,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-08-29 13:14:17,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-08-29 13:14:17,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-08-29 13:14:17,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de740cb7316ae9c63e2c3ee48446f6a3df9739b5
[2021-08-29 13:14:18,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-29 13:14:18,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-29 13:14:18,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-29 13:14:18,223 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-08-29 13:14:18,224 INFO L275 PluginConnector]: CDTParser initialized
[2021-08-29 13:14:18,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound1.c
[2021-08-29 13:14:18,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1dd9d7b5/7a46e9e8c20747b9ac833a2f394dec91/FLAG26da82124
[2021-08-29 13:14:18,775 INFO L306 CDTParser]: Found 1 translation units.
[2021-08-29 13:14:18,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound1.c
[2021-08-29 13:14:18,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1dd9d7b5/7a46e9e8c20747b9ac833a2f394dec91/FLAG26da82124
[2021-08-29 13:14:19,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1dd9d7b5/7a46e9e8c20747b9ac833a2f394dec91
[2021-08-29 13:14:19,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-29 13:14:19,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-08-29 13:14:19,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-08-29 13:14:19,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-08-29 13:14:19,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-08-29 13:14:19,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1070539d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19, skipping insertion in model container
[2021-08-29 13:14:19,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-08-29 13:14:19,210 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-08-29 13:14:19,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound1.c[546,559]
[2021-08-29 13:14:19,315 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-08-29 13:14:19,322 INFO L203 MainTranslator]: Completed pre-run
[2021-08-29 13:14:19,332 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound1.c[546,559]
[2021-08-29 13:14:19,337 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-08-29 13:14:19,348 INFO L208 MainTranslator]: Completed translation
[2021-08-29 13:14:19,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19 WrapperNode
[2021-08-29 13:14:19,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-08-29 13:14:19,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-08-29 13:14:19,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-08-29 13:14:19,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-08-29 13:14:19,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-08-29 13:14:19,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-29 13:14:19,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-29 13:14:19,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-08-29 13:14:19,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-29 13:14:19,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-29 13:14:19,474 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-08-29 13:14:19,474 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-08-29 13:14:19,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (1/1) ...
[2021-08-29 13:14:19,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-29 13:14:19,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-29 13:14:19,502 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)
[2021-08-29 13:14:19,528 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
[2021-08-29 13:14:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-08-29 13:14:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-08-29 13:14:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-29 13:14:19,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-29 13:14:19,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-29 13:14:19,706 INFO L299 CfgBuilder]: Removed 17 assume(true) statements.
[2021-08-29 13:14:19,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:14:19 BoogieIcfgContainer
[2021-08-29 13:14:19,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-29 13:14:19,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-08-29 13:14:19,711 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-08-29 13:14:19,714 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-08-29 13:14:19,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:14:19" (1/3) ...
[2021-08-29 13:14:19,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297c597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:14:19, skipping insertion in model container
[2021-08-29 13:14:19,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:14:19" (2/3) ...
[2021-08-29 13:14:19,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1297c597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:14:19, skipping insertion in model container
[2021-08-29 13:14:19,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:14:19" (3/3) ...
[2021-08-29 13:14:19,717 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound1.c
[2021-08-29 13:14:19,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-08-29 13:14:19,723 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-08-29 13:14:19,772 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-08-29 13:14:19,783 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-08-29 13:14:19,784 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-08-29 13:14:19,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 20 states have (on average 1.55) internal successors, (31), 22 states have internal predecessors, (31), 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)
[2021-08-29 13:14:19,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-08-29 13:14:19,807 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-29 13:14:19,807 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 13:14:19,808 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 13:14:19,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 13:14:19,814 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times
[2021-08-29 13:14:19,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 13:14:19,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425926823]
[2021-08-29 13:14:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 13:14:19,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 13:14:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 13:14:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 13:14:20,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-29 13:14:20,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425926823]
[2021-08-29 13:14:20,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425926823] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-29 13:14:20,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-29 13:14:20,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-08-29 13:14:20,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443886215]
[2021-08-29 13:14:20,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-08-29 13:14:20,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-29 13:14:20,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-08-29 13:14:20,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-08-29 13:14:20,048 INFO L87 Difference]: Start difference. First operand has 23 states, 20 states have (on average 1.55) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-29 13:14:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-29 13:14:20,123 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions.
[2021-08-29 13:14:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-08-29 13:14:20,126 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-08-29 13:14:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-29 13:14:20,132 INFO L225 Difference]: With dead ends: 43
[2021-08-29 13:14:20,133 INFO L226 Difference]: Without dead ends: 19
[2021-08-29 13:14:20,135 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-08-29 13:14:20,138 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.25ms IncrementalHoareTripleChecker+Time
[2021-08-29 13:14:20,139 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.31ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 61.25ms Time]
[2021-08-29 13:14:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-08-29 13:14:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-08-29 13:14:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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)
[2021-08-29 13:14:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2021-08-29 13:14:20,164 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 13
[2021-08-29 13:14:20,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-29 13:14:20,164 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2021-08-29 13:14:20,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-29 13:14:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2021-08-29 13:14:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-08-29 13:14:20,166 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-29 13:14:20,166 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 13:14:20,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-08-29 13:14:20,166 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 13:14:20,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 13:14:20,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times
[2021-08-29 13:14:20,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 13:14:20,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125827037]
[2021-08-29 13:14:20,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 13:14:20,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 13:14:20,182 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-08-29 13:14:20,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509211212]
[2021-08-29 13:14:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 13:14:20,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-29 13:14:20,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-29 13:14:20,209 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)
[2021-08-29 13:14:20,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-08-29 13:14:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 13:14:20,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core
[2021-08-29 13:14:20,299 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-08-29 13:14:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 13:14:20,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-08-29 13:14:20,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-29 13:14:20,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125827037]
[2021-08-29 13:14:20,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-08-29 13:14:20,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509211212]
[2021-08-29 13:14:20,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509211212] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-29 13:14:20,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-29 13:14:20,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-08-29 13:14:20,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550929253]
[2021-08-29 13:14:20,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-08-29 13:14:20,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-29 13:14:20,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-08-29 13:14:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-08-29 13:14:20,644 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-29 13:14:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-29 13:14:20,823 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions.
[2021-08-29 13:14:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-08-29 13:14:20,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-08-29 13:14:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-29 13:14:20,825 INFO L225 Difference]: With dead ends: 29
[2021-08-29 13:14:20,825 INFO L226 Difference]: Without dead ends: 23
[2021-08-29 13:14:20,826 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 147.79ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2021-08-29 13:14:20,827 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.21ms IncrementalHoareTripleChecker+Time
[2021-08-29 13:14:20,828 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 106 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 92.21ms Time]
[2021-08-29 13:14:20,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2021-08-29 13:14:20,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22.
[2021-08-29 13:14:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 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)
[2021-08-29 13:14:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions.
[2021-08-29 13:14:20,833 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13
[2021-08-29 13:14:20,833 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-29 13:14:20,833 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions.
[2021-08-29 13:14:20,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-29 13:14:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions.
[2021-08-29 13:14:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-08-29 13:14:20,834 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-29 13:14:20,834 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-29 13:14:20,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-08-29 13:14:21,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-29 13:14:21,057 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-08-29 13:14:21,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-29 13:14:21,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2131965670, now seen corresponding path program 1 times
[2021-08-29 13:14:21,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-29 13:14:21,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384000085]
[2021-08-29 13:14:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 13:14:21,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-29 13:14:21,087 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-08-29 13:14:21,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214673929]
[2021-08-29 13:14:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-29 13:14:21,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-29 13:14:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-29 13:14:21,095 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)
[2021-08-29 13:14:21,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-08-29 13:14:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-29 13:14:21,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-08-29 13:14:21,157 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-08-29 13:14:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-29 13:14:21,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-08-29 13:14:21,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-29 13:14:21,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384000085]
[2021-08-29 13:14:21,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-08-29 13:14:21,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214673929]
[2021-08-29 13:14:21,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214673929] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-29 13:14:21,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-29 13:14:21,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-08-29 13:14:21,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421564200]
[2021-08-29 13:14:21,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-08-29 13:14:21,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-29 13:14:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-08-29 13:14:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-08-29 13:14:21,337 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2021-08-29 13:14:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-29 13:14:21,378 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions.
[2021-08-29 13:14:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-08-29 13:14:21,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-08-29 13:14:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-29 13:14:21,380 INFO L225 Difference]: With dead ends: 22
[2021-08-29 13:14:21,380 INFO L226 Difference]: Without dead ends: 0
[2021-08-29 13:14:21,380 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.30ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-08-29 13:14:21,383 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.31ms IncrementalHoareTripleChecker+Time
[2021-08-29 13:14:21,384 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 19.31ms Time]
[2021-08-29 13:14:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-08-29 13:14:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-08-29 13:14:21,386 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)
[2021-08-29 13:14:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-08-29 13:14:21,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2021-08-29 13:14:21,386 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-29 13:14:21,386 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-08-29 13:14:21,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2021-08-29 13:14:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-08-29 13:14:21,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-08-29 13:14:21,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2021-08-29 13:14:21,391 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2021-08-29 13:14:21,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-08-29 13:14:21,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2021-08-29 13:14:21,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-08-29 13:14:21,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-08-29 13:14:21,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-08-29 13:14:21,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-08-29 13:14:21,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-08-29 13:14:21,653 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed.
[2021-08-29 13:14:21,653 INFO L854 garLoopResultBuilder]: At program point L36-2(lines 36 46) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~z~0) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0))
[2021-08-29 13:14:21,653 INFO L858 garLoopResultBuilder]: For program point L36-3(lines 36 46) no Hoare annotation was computed.
[2021-08-29 13:14:21,653 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-08-29 13:14:21,654 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-08-29 13:14:21,654 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-08-29 13:14:21,654 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed.
[2021-08-29 13:14:21,654 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed.
[2021-08-29 13:14:21,654 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 39 40) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~z~0) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~k~0 1) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0))
[2021-08-29 13:14:21,655 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 19) no Hoare annotation was computed.
[2021-08-29 13:14:21,655 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed.
[2021-08-29 13:14:21,655 INFO L858 garLoopResultBuilder]: For program point L12-1(lines 12 14) no Hoare annotation was computed.
[2021-08-29 13:14:21,655 INFO L861 garLoopResultBuilder]: At program point L16-5(lines 15 21) the Hoare annotation is: true
[2021-08-29 13:14:21,655 INFO L858 garLoopResultBuilder]: For program point L12-2(lines 12 14) no Hoare annotation was computed.
[2021-08-29 13:14:21,655 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 14) no Hoare annotation was computed.
[2021-08-29 13:14:21,655 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-08-29 13:14:21,656 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed.
[2021-08-29 13:14:21,656 INFO L858 garLoopResultBuilder]: For program point L17-1(lines 17 18) no Hoare annotation was computed.
[2021-08-29 13:14:21,656 INFO L858 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed.
[2021-08-29 13:14:21,656 INFO L858 garLoopResultBuilder]: For program point L13-2(line 13) no Hoare annotation was computed.
[2021-08-29 13:14:21,656 INFO L858 garLoopResultBuilder]: For program point L13-4(line 13) no Hoare annotation was computed.
[2021-08-29 13:14:21,656 INFO L858 garLoopResultBuilder]: For program point L13-6(line 13) no Hoare annotation was computed.
[2021-08-29 13:14:21,657 INFO L861 garLoopResultBuilder]: At program point L51(lines 22 52) the Hoare annotation is: true
[2021-08-29 13:14:21,661 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-08-29 13:14:21,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:14:21 BoogieIcfgContainer
[2021-08-29 13:14:21,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-08-29 13:14:21,682 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-08-29 13:14:21,682 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-08-29 13:14:21,682 INFO L275 PluginConnector]: Witness Printer initialized
[2021-08-29 13:14:21,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:14:19" (3/4) ...
[2021-08-29 13:14:21,685 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-08-29 13:14:21,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2021-08-29 13:14:21,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-08-29 13:14:21,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-08-29 13:14:21,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-08-29 13:14:21,722 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-08-29 13:14:21,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-08-29 13:14:21,723 INFO L158 Benchmark]: Toolchain (without parser) took 2542.66ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 43.1MB in the beginning and 33.9MB in the end (delta: 9.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB.
[2021-08-29 13:14:21,723 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-08-29 13:14:21,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.73ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 33.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-08-29 13:14:21,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.48ms. Allocated memory is still 62.9MB. Free memory was 33.2MB in the beginning and 45.7MB in the end (delta: -12.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-08-29 13:14:21,724 INFO L158 Benchmark]: Boogie Preprocessor took 47.48ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 44.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-08-29 13:14:21,724 INFO L158 Benchmark]: RCFGBuilder took 235.93ms. Allocated memory is still 62.9MB. Free memory was 44.6MB in the beginning and 35.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-08-29 13:14:21,725 INFO L158 Benchmark]: TraceAbstraction took 1963.29ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 37.1MB in the end (delta: -1.6MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB.
[2021-08-29 13:14:21,725 INFO L158 Benchmark]: Witness Printer took 40.40ms. Allocated memory is still 75.5MB. Free memory was 37.1MB in the beginning and 33.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-08-29 13:14:21,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 167.73ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 33.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 73.48ms. Allocated memory is still 62.9MB. Free memory was 33.2MB in the beginning and 45.7MB in the end (delta: -12.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 47.48ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 44.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 235.93ms. Allocated memory is still 62.9MB. Free memory was 44.6MB in the beginning and 35.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 1963.29ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 37.1MB in the end (delta: -1.6MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB.
* Witness Printer took 40.40ms. Allocated memory is still 75.5MB. Free memory was 37.1MB in the beginning and 33.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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
- 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 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1890.88ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 13.22ms, AutomataDifference: 356.41ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 46.94ms, InitialAbstractionConstructionTime: 10.78ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 172.77ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 143.89ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 150 mSolverCounterSat, 2.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 189.12ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 17.62ms AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 49 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 21.44ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 19.51ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 29.53ms SsaConstructionTime, 83.63ms SatisfiabilityAnalysisTime, 595.64ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 10 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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
2 specifications checked. All of them hold
- InvariantResult [Line: 22]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 39]: Loop Invariant
Derived loop invariant: ((((((1 <= z && 0 <= k) && z <= 1) && 1 <= cond) && k <= 1) && 1 <= c) && x == 1) && z == y
- InvariantResult [Line: 15]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 36]: Loop Invariant
Derived loop invariant: (((((1 <= z && 0 <= k) && z <= 1) && k <= 1) && 1 <= c) && x == 1) && z == y
RESULT: Ultimate proved your program to be correct!
[2021-08-29 13:14:21,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...