./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/recursive-simple/fibo_7-1.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 c81a149fe338374de067d63dbdea0d00d3f8a8fa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 09:00:16,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 09:00:16,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 09:00:16,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 09:00:16,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 09:00:16,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 09:00:16,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 09:00:16,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 09:00:16,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 09:00:16,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 09:00:16,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 09:00:16,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 09:00:16,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 09:00:16,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 09:00:16,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 09:00:16,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 09:00:16,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 09:00:16,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 09:00:16,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 09:00:16,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 09:00:16,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 09:00:16,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 09:00:16,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 09:00:16,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 09:00:16,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 09:00:16,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 09:00:16,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 09:00:16,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 09:00:16,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 09:00:16,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 09:00:16,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 09:00:16,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 09:00:16,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 09:00:16,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 09:00:16,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 09:00:16,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 09:00:16,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 09:00:16,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 09:00:16,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 09:00:16,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 09:00:16,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 09:00:16,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 09:00:16,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 09:00:16,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 09:00:16,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 09:00:16,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 09:00:16,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 09:00:16,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 09:00:16,322 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 09:00:16,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 09:00:16,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 09:00:16,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 09:00:16,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 09:00:16,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 09:00:16,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 09:00:16,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 09:00:16,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 09:00:16,324 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 09:00:16,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 09:00:16,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 09:00:16,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 09:00:16,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 09:00:16,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 09:00:16,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 09:00:16,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 09:00:16,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 09:00:16,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 09:00:16,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 09:00:16,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 09:00:16,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 09:00:16,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 09:00:16,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 09:00:16,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c81a149fe338374de067d63dbdea0d00d3f8a8fa [2021-08-26 09:00:16,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 09:00:16,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 09:00:16,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 09:00:16,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 09:00:16,626 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 09:00:16,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2021-08-26 09:00:16,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c595f459a/4aac4a3477394152b4efef075bb93957/FLAG2248e530c [2021-08-26 09:00:17,023 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 09:00:17,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2021-08-26 09:00:17,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c595f459a/4aac4a3477394152b4efef075bb93957/FLAG2248e530c [2021-08-26 09:00:17,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c595f459a/4aac4a3477394152b4efef075bb93957 [2021-08-26 09:00:17,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 09:00:17,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 09:00:17,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 09:00:17,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 09:00:17,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 09:00:17,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45062044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17, skipping insertion in model container [2021-08-26 09:00:17,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 09:00:17,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 09:00:17,158 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/recursive-simple/fibo_7-1.c[741,754] [2021-08-26 09:00:17,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 09:00:17,169 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 09:00:17,179 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/recursive-simple/fibo_7-1.c[741,754] [2021-08-26 09:00:17,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 09:00:17,210 INFO L208 MainTranslator]: Completed translation [2021-08-26 09:00:17,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17 WrapperNode [2021-08-26 09:00:17,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 09:00:17,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 09:00:17,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 09:00:17,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 09:00:17,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 09:00:17,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 09:00:17,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 09:00:17,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 09:00:17,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 09:00:17,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 09:00:17,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 09:00:17,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 09:00:17,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (1/1) ... [2021-08-26 09:00:17,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 09:00:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:17,312 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) [2021-08-26 09:00:17,330 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 [2021-08-26 09:00:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 09:00:17,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 09:00:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 09:00:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 09:00:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2021-08-26 09:00:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2021-08-26 09:00:17,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 09:00:17,557 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-26 09:00:17,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:00:17 BoogieIcfgContainer [2021-08-26 09:00:17,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 09:00:17,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 09:00:17,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 09:00:17,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 09:00:17,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:00:17" (1/3) ... [2021-08-26 09:00:17,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31824963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:00:17, skipping insertion in model container [2021-08-26 09:00:17,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:00:17" (2/3) ... [2021-08-26 09:00:17,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31824963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:00:17, skipping insertion in model container [2021-08-26 09:00:17,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:00:17" (3/3) ... [2021-08-26 09:00:17,576 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2021-08-26 09:00:17,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 09:00:17,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 09:00:17,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 09:00:17,658 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 [2021-08-26 09:00:17,658 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 09:00:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-26 09:00:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 09:00:17,678 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:17,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:17,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:17,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1755511548, now seen corresponding path program 1 times [2021-08-26 09:00:17,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:17,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886539462] [2021-08-26 09:00:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:17,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 09:00:17,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:17,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886539462] [2021-08-26 09:00:17,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886539462] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 09:00:17,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 09:00:17,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 09:00:17,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006007698] [2021-08-26 09:00:17,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 09:00:17,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:17,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 09:00:17,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 09:00:17,882 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-26 09:00:17,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:17,992 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2021-08-26 09:00:17,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 09:00:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-08-26 09:00:17,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:17,999 INFO L225 Difference]: With dead ends: 30 [2021-08-26 09:00:17,999 INFO L226 Difference]: Without dead ends: 18 [2021-08-26 09:00:18,001 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 09:00:18,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-08-26 09:00:18,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-26 09:00:18,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-26 09:00:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-08-26 09:00:18,027 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2021-08-26 09:00:18,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:18,027 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-08-26 09:00:18,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-26 09:00:18,027 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-08-26 09:00:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 09:00:18,029 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:18,029 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:18,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 09:00:18,029 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:18,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2128459596, now seen corresponding path program 1 times [2021-08-26 09:00:18,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:18,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887680618] [2021-08-26 09:00:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:18,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 09:00:18,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:18,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887680618] [2021-08-26 09:00:18,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887680618] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 09:00:18,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 09:00:18,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 09:00:18,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020080152] [2021-08-26 09:00:18,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 09:00:18,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:18,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 09:00:18,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 09:00:18,103 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-26 09:00:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:18,182 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2021-08-26 09:00:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 09:00:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-08-26 09:00:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:18,184 INFO L225 Difference]: With dead ends: 24 [2021-08-26 09:00:18,184 INFO L226 Difference]: Without dead ends: 20 [2021-08-26 09:00:18,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 09:00:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-08-26 09:00:18,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-08-26 09:00:18,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-26 09:00:18,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-08-26 09:00:18,188 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2021-08-26 09:00:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:18,188 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-08-26 09:00:18,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-26 09:00:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-08-26 09:00:18,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 09:00:18,189 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:18,189 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:18,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 09:00:18,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:18,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:18,190 INFO L82 PathProgramCache]: Analyzing trace with hash -42544313, now seen corresponding path program 1 times [2021-08-26 09:00:18,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:18,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846780410] [2021-08-26 09:00:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:18,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-26 09:00:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-26 09:00:18,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:18,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846780410] [2021-08-26 09:00:18,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846780410] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:18,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917879477] [2021-08-26 09:00:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:18,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:18,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:18,289 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) [2021-08-26 09:00:18,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 09:00:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-26 09:00:18,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-26 09:00:18,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917879477] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:18,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:18,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-26 09:00:18,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911609290] [2021-08-26 09:00:18,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 09:00:18,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:18,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 09:00:18,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-08-26 09:00:18,554 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 6 states have call successors, (6) [2021-08-26 09:00:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:18,674 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2021-08-26 09:00:18,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 09:00:18,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 6 states have call successors, (6) Word has length 23 [2021-08-26 09:00:18,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:18,682 INFO L225 Difference]: With dead ends: 35 [2021-08-26 09:00:18,682 INFO L226 Difference]: Without dead ends: 20 [2021-08-26 09:00:18,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 103.3ms TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-08-26 09:00:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-08-26 09:00:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-08-26 09:00:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-26 09:00:18,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-08-26 09:00:18,688 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23 [2021-08-26 09:00:18,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:18,688 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-08-26 09:00:18,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 6 states have call successors, (6) [2021-08-26 09:00:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-08-26 09:00:18,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 09:00:18,693 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:18,693 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:18,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:18,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:18,921 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:18,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:18,922 INFO L82 PathProgramCache]: Analyzing trace with hash 170813287, now seen corresponding path program 1 times [2021-08-26 09:00:18,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:18,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865413790] [2021-08-26 09:00:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:18,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-26 09:00:19,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:19,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865413790] [2021-08-26 09:00:19,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865413790] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:19,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923085404] [2021-08-26 09:00:19,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:19,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:19,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:19,069 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) [2021-08-26 09:00:19,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-26 09:00:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-26 09:00:19,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-26 09:00:19,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923085404] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:19,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:19,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-08-26 09:00:19,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12373871] [2021-08-26 09:00:19,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 09:00:19,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:19,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 09:00:19,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-26 09:00:19,302 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-26 09:00:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:19,369 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-08-26 09:00:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 09:00:19,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 24 [2021-08-26 09:00:19,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:19,371 INFO L225 Difference]: With dead ends: 38 [2021-08-26 09:00:19,371 INFO L226 Difference]: Without dead ends: 34 [2021-08-26 09:00:19,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 52.6ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-08-26 09:00:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-26 09:00:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-08-26 09:00:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2021-08-26 09:00:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-08-26 09:00:19,377 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24 [2021-08-26 09:00:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:19,377 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-08-26 09:00:19,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-26 09:00:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-08-26 09:00:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-26 09:00:19,378 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:19,379 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:19,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:19,595 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,SelfDestructingSolverStorable3 [2021-08-26 09:00:19,596 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:19,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:19,596 INFO L82 PathProgramCache]: Analyzing trace with hash -187634876, now seen corresponding path program 2 times [2021-08-26 09:00:19,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:19,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245969690] [2021-08-26 09:00:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:19,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-26 09:00:19,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:19,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245969690] [2021-08-26 09:00:19,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245969690] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:19,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956409100] [2021-08-26 09:00:19,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-26 09:00:19,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:19,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:19,693 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) [2021-08-26 09:00:19,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-26 09:00:19,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-26 09:00:19,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 09:00:19,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 09:00:19,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-08-26 09:00:19,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956409100] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:19,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:19,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-08-26 09:00:19,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412287647] [2021-08-26 09:00:19,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-26 09:00:19,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:19,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-26 09:00:19,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-08-26 09:00:19,915 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 7 states have call successors, (9), 1 states have call predecessors, (9), 7 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2021-08-26 09:00:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:20,087 INFO L93 Difference]: Finished difference Result 69 states and 106 transitions. [2021-08-26 09:00:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-26 09:00:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 7 states have call successors, (9), 1 states have call predecessors, (9), 7 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) Word has length 37 [2021-08-26 09:00:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:20,089 INFO L225 Difference]: With dead ends: 69 [2021-08-26 09:00:20,089 INFO L226 Difference]: Without dead ends: 38 [2021-08-26 09:00:20,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 117.6ms TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2021-08-26 09:00:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-26 09:00:20,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-08-26 09:00:20,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2021-08-26 09:00:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2021-08-26 09:00:20,095 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2021-08-26 09:00:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:20,095 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-08-26 09:00:20,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 7 states have call successors, (9), 1 states have call predecessors, (9), 7 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2021-08-26 09:00:20,097 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2021-08-26 09:00:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-26 09:00:20,100 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:20,101 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:20,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:20,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:20,309 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:20,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2015531204, now seen corresponding path program 3 times [2021-08-26 09:00:20,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:20,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082530060] [2021-08-26 09:00:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:20,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-08-26 09:00:20,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:20,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082530060] [2021-08-26 09:00:20,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082530060] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:20,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79097662] [2021-08-26 09:00:20,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-26 09:00:20,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:20,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 09:00:20,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 09:00:20,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-26 09:00:20,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 09:00:20,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 09:00:20,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 22 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-08-26 09:00:20,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79097662] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:20,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:20,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 13 [2021-08-26 09:00:20,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621457661] [2021-08-26 09:00:20,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-26 09:00:20,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-26 09:00:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-26 09:00:20,818 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 7 states have call successors, (9), 1 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-26 09:00:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:20,918 INFO L93 Difference]: Finished difference Result 85 states and 124 transitions. [2021-08-26 09:00:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-26 09:00:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 7 states have call successors, (9), 1 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) Word has length 65 [2021-08-26 09:00:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:20,920 INFO L225 Difference]: With dead ends: 85 [2021-08-26 09:00:20,920 INFO L226 Difference]: Without dead ends: 50 [2021-08-26 09:00:20,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 86.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-26 09:00:20,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-26 09:00:20,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2021-08-26 09:00:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 32 states have internal predecessors, (38), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (16), 9 states have call predecessors, (16), 7 states have call successors, (16) [2021-08-26 09:00:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2021-08-26 09:00:20,926 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 65 [2021-08-26 09:00:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:20,926 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2021-08-26 09:00:20,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 7 states have call successors, (9), 1 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-26 09:00:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2021-08-26 09:00:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-08-26 09:00:20,928 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:20,928 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:20,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-26 09:00:21,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:21,145 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:21,145 INFO L82 PathProgramCache]: Analyzing trace with hash -292645265, now seen corresponding path program 4 times [2021-08-26 09:00:21,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:21,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840580521] [2021-08-26 09:00:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:21,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-08-26 09:00:21,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:21,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840580521] [2021-08-26 09:00:21,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840580521] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:21,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956551442] [2021-08-26 09:00:21,410 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-26 09:00:21,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:21,413 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 09:00:21,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-26 09:00:21,538 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-26 09:00:21,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 09:00:21,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-26 09:00:21,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-08-26 09:00:21,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956551442] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:21,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:21,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 14 [2021-08-26 09:00:21,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654665759] [2021-08-26 09:00:21,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-26 09:00:21,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:21,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-26 09:00:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-08-26 09:00:21,961 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 12 states have call successors, (13), 1 states have call predecessors, (13), 6 states have return successors, (19), 10 states have call predecessors, (19), 12 states have call successors, (19) [2021-08-26 09:00:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:22,230 INFO L93 Difference]: Finished difference Result 117 states and 176 transitions. [2021-08-26 09:00:22,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-26 09:00:22,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 12 states have call successors, (13), 1 states have call predecessors, (13), 6 states have return successors, (19), 10 states have call predecessors, (19), 12 states have call successors, (19) Word has length 106 [2021-08-26 09:00:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:22,235 INFO L225 Difference]: With dead ends: 117 [2021-08-26 09:00:22,235 INFO L226 Difference]: Without dead ends: 113 [2021-08-26 09:00:22,236 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 84.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-26 09:00:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-08-26 09:00:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2021-08-26 09:00:22,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 68 states have internal predecessors, (82), 21 states have call successors, (21), 9 states have call predecessors, (21), 13 states have return successors, (56), 26 states have call predecessors, (56), 21 states have call successors, (56) [2021-08-26 09:00:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 159 transitions. [2021-08-26 09:00:22,257 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 159 transitions. Word has length 106 [2021-08-26 09:00:22,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:22,257 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 159 transitions. [2021-08-26 09:00:22,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 12 states have call successors, (13), 1 states have call predecessors, (13), 6 states have return successors, (19), 10 states have call predecessors, (19), 12 states have call successors, (19) [2021-08-26 09:00:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 159 transitions. [2021-08-26 09:00:22,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-08-26 09:00:22,260 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:22,260 INFO L512 BasicCegarLoop]: trace histogram [25, 25, 20, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:22,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:22,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:22,473 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:22,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1694816164, now seen corresponding path program 5 times [2021-08-26 09:00:22,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:22,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090664498] [2021-08-26 09:00:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:22,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-08-26 09:00:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 533 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-08-26 09:00:22,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:22,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090664498] [2021-08-26 09:00:22,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090664498] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:22,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190457913] [2021-08-26 09:00:22,781 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-26 09:00:22,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:22,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:22,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 09:00:22,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-26 09:00:23,017 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2021-08-26 09:00:23,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 09:00:23,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-26 09:00:23,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 328 proven. 115 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked. [2021-08-26 09:00:23,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190457913] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:23,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:23,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 16 [2021-08-26 09:00:23,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923878228] [2021-08-26 09:00:23,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-26 09:00:23,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:23,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-26 09:00:23,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-08-26 09:00:23,433 INFO L87 Difference]: Start difference. First operand 104 states and 159 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-08-26 09:00:23,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:23,612 INFO L93 Difference]: Finished difference Result 241 states and 406 transitions. [2021-08-26 09:00:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-26 09:00:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) Word has length 174 [2021-08-26 09:00:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:23,617 INFO L225 Difference]: With dead ends: 241 [2021-08-26 09:00:23,617 INFO L226 Difference]: Without dead ends: 237 [2021-08-26 09:00:23,618 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 74.0ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-08-26 09:00:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-08-26 09:00:23,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 225. [2021-08-26 09:00:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 145 states have (on average 1.2) internal successors, (174), 144 states have internal predecessors, (174), 51 states have call successors, (51), 17 states have call predecessors, (51), 28 states have return successors, (160), 63 states have call predecessors, (160), 51 states have call successors, (160) [2021-08-26 09:00:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 385 transitions. [2021-08-26 09:00:23,642 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 385 transitions. Word has length 174 [2021-08-26 09:00:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:23,643 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 385 transitions. [2021-08-26 09:00:23,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-08-26 09:00:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 385 transitions. [2021-08-26 09:00:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-08-26 09:00:23,647 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:23,648 INFO L512 BasicCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:23,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:23,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:23,865 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:23,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:23,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1843553927, now seen corresponding path program 6 times [2021-08-26 09:00:23,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:23,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166509585] [2021-08-26 09:00:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:23,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:23,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-08-26 09:00:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-08-26 09:00:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-08-26 09:00:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 844 proven. 1612 refuted. 0 times theorem prover too weak. 4664 trivial. 0 not checked. [2021-08-26 09:00:24,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:24,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166509585] [2021-08-26 09:00:24,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166509585] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:24,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997700477] [2021-08-26 09:00:24,542 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-26 09:00:24,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:24,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:24,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 09:00:24,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-26 09:00:24,940 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2021-08-26 09:00:24,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 09:00:24,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-26 09:00:24,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 1045 proven. 197 refuted. 0 times theorem prover too weak. 5878 trivial. 0 not checked. [2021-08-26 09:00:25,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997700477] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:25,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:25,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 9] total 27 [2021-08-26 09:00:25,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126473671] [2021-08-26 09:00:25,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-26 09:00:25,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:25,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-26 09:00:25,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2021-08-26 09:00:25,725 INFO L87 Difference]: Start difference. First operand 225 states and 385 transitions. Second operand has 27 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 27 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (30), 23 states have call predecessors, (30), 14 states have call successors, (30) [2021-08-26 09:00:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:26,412 INFO L93 Difference]: Finished difference Result 350 states and 695 transitions. [2021-08-26 09:00:26,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-26 09:00:26,413 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 27 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (30), 23 states have call predecessors, (30), 14 states have call successors, (30) Word has length 351 [2021-08-26 09:00:26,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:26,414 INFO L225 Difference]: With dead ends: 350 [2021-08-26 09:00:26,414 INFO L226 Difference]: Without dead ends: 118 [2021-08-26 09:00:26,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 407.0ms TimeCoverageRelationStatistics Valid=480, Invalid=1872, Unknown=0, NotChecked=0, Total=2352 [2021-08-26 09:00:26,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-08-26 09:00:26,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 92. [2021-08-26 09:00:26,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.0757575757575757) internal successors, (71), 62 states have internal predecessors, (71), 17 states have call successors, (17), 14 states have call predecessors, (17), 8 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2021-08-26 09:00:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2021-08-26 09:00:26,423 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 351 [2021-08-26 09:00:26,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:26,425 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2021-08-26 09:00:26,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 27 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (30), 23 states have call predecessors, (30), 14 states have call successors, (30) [2021-08-26 09:00:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2021-08-26 09:00:26,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-08-26 09:00:26,428 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:26,429 INFO L512 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:26,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:26,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:26,645 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1099173212, now seen corresponding path program 7 times [2021-08-26 09:00:26,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:26,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030574939] [2021-08-26 09:00:26,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:26,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:26,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-08-26 09:00:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-08-26 09:00:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2021-08-26 09:00:27,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:27,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030574939] [2021-08-26 09:00:27,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030574939] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:27,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490398994] [2021-08-26 09:00:27,613 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-26 09:00:27,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:27,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:27,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 09:00:27,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-26 09:00:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:28,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 167 conjunts are in the unsatisfiable core [2021-08-26 09:00:28,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2021-08-26 09:00:29,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490398994] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:29,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:29,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 28 [2021-08-26 09:00:29,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798160484] [2021-08-26 09:00:29,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-26 09:00:29,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:29,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-26 09:00:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-26 09:00:29,892 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (7), 1 states have call predecessors, (7), 7 states have return successors, (18), 18 states have call predecessors, (18), 6 states have call successors, (18) [2021-08-26 09:00:30,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:30,134 INFO L93 Difference]: Finished difference Result 131 states and 175 transitions. [2021-08-26 09:00:30,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-26 09:00:30,134 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (7), 1 states have call predecessors, (7), 7 states have return successors, (18), 18 states have call predecessors, (18), 6 states have call successors, (18) Word has length 283 [2021-08-26 09:00:30,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:30,137 INFO L225 Difference]: With dead ends: 131 [2021-08-26 09:00:30,137 INFO L226 Difference]: Without dead ends: 127 [2021-08-26 09:00:30,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 401 SyntacticMatches, 22 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 719.3ms TimeCoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-26 09:00:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-26 09:00:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2021-08-26 09:00:30,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 79 states have internal predecessors, (88), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (51), 26 states have call predecessors, (51), 22 states have call successors, (51) [2021-08-26 09:00:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2021-08-26 09:00:30,152 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 283 [2021-08-26 09:00:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:30,154 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2021-08-26 09:00:30,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (7), 1 states have call predecessors, (7), 7 states have return successors, (18), 18 states have call predecessors, (18), 6 states have call successors, (18) [2021-08-26 09:00:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2021-08-26 09:00:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-08-26 09:00:30,157 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 09:00:30,157 INFO L512 BasicCegarLoop]: trace histogram [43, 43, 35, 21, 21, 21, 21, 21, 21, 21, 14, 8, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 09:00:30,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:30,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-26 09:00:30,377 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 09:00:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 09:00:30,377 INFO L82 PathProgramCache]: Analyzing trace with hash 2121693079, now seen corresponding path program 8 times [2021-08-26 09:00:30,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 09:00:30,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859848248] [2021-08-26 09:00:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 09:00:30,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 09:00:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-26 09:00:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-08-26 09:00:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-08-26 09:00:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-08-26 09:00:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-08-26 09:00:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-08-26 09:00:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-08-26 09:00:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-26 09:00:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-26 09:00:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-08-26 09:00:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 09:00:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5047 backedges. 329 proven. 859 refuted. 0 times theorem prover too weak. 3859 trivial. 0 not checked. [2021-08-26 09:00:30,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 09:00:30,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859848248] [2021-08-26 09:00:30,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859848248] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:30,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553839082] [2021-08-26 09:00:30,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-26 09:00:30,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:30,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 09:00:30,689 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 09:00:30,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-26 09:00:31,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-26 09:00:31,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 09:00:31,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-26 09:00:31,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 09:00:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5047 backedges. 322 proven. 1252 refuted. 0 times theorem prover too weak. 3473 trivial. 0 not checked. [2021-08-26 09:00:32,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553839082] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 09:00:32,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 09:00:32,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 18 [2021-08-26 09:00:32,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811189583] [2021-08-26 09:00:32,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-26 09:00:32,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 09:00:32,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-26 09:00:32,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-08-26 09:00:32,066 INFO L87 Difference]: Start difference. First operand 120 states and 161 transitions. Second operand has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 15 states have call successors, (17), 1 states have call predecessors, (17), 11 states have return successors, (26), 12 states have call predecessors, (26), 15 states have call successors, (26) [2021-08-26 09:00:32,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 09:00:32,315 INFO L93 Difference]: Finished difference Result 220 states and 342 transitions. [2021-08-26 09:00:32,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-26 09:00:32,316 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 15 states have call successors, (17), 1 states have call predecessors, (17), 11 states have return successors, (26), 12 states have call predecessors, (26), 15 states have call successors, (26) Word has length 297 [2021-08-26 09:00:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 09:00:32,316 INFO L225 Difference]: With dead ends: 220 [2021-08-26 09:00:32,316 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 09:00:32,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2021-08-26 09:00:32,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 09:00:32,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 09:00:32,318 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) [2021-08-26 09:00:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 09:00:32,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 297 [2021-08-26 09:00:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 09:00:32,319 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 09:00:32,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 15 states have call successors, (17), 1 states have call predecessors, (17), 11 states have return successors, (26), 12 states have call predecessors, (26), 15 states have call successors, (26) [2021-08-26 09:00:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 09:00:32,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 09:00:32,321 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 09:00:32,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-26 09:00:32,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 09:00:32,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 09:00:32,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:32,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 09:00:33,033 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 09:00:33,034 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 09:00:33,034 INFO L853 garLoopResultBuilder]: At program point L31(lines 25 32) the Hoare annotation is: (<= 7 ULTIMATE.start_main_~x~0) [2021-08-26 09:00:33,034 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 09:00:33,034 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-08-26 09:00:33,034 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 09:00:33,034 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 30) no Hoare annotation was computed. [2021-08-26 09:00:33,034 INFO L853 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 7) (<= 7 ULTIMATE.start_main_~x~0)) [2021-08-26 09:00:33,035 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-08-26 09:00:33,035 INFO L857 garLoopResultBuilder]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2021-08-26 09:00:33,035 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2021-08-26 09:00:33,035 INFO L857 garLoopResultBuilder]: For program point fiboEXIT(lines 7 15) no Hoare annotation was computed. [2021-08-26 09:00:33,035 INFO L857 garLoopResultBuilder]: For program point fiboFINAL(lines 7 15) no Hoare annotation was computed. [2021-08-26 09:00:33,035 INFO L853 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (= fibo_~n |fibo_#in~n|) (not (<= |fibo_#in~n| 1))) [2021-08-26 09:00:33,035 INFO L857 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-08-26 09:00:33,035 INFO L853 garLoopResultBuilder]: At program point L13-2(line 13) the Hoare annotation is: (and (= fibo_~n |fibo_#in~n|) (let ((.cse0 (<= 1 |fibo_#t~ret7|)) (.cse1 (<= |fibo_#t~ret7| 1))) (or (and .cse0 (< 1 fibo_~n) (<= fibo_~n 2) .cse1) (and (<= 7 |fibo_#in~n|) (<= 8 |fibo_#t~ret7|) (<= |fibo_#t~ret7| 8)) (and (<= 3 fibo_~n) .cse0 .cse1 (<= fibo_~n 3)) (and (<= 4 fibo_~n) (<= fibo_~n 4) (<= 2 |fibo_#t~ret7|) (<= |fibo_#t~ret7| 2)) (<= 8 |fibo_#in~n|) (and (<= 3 |fibo_#t~ret7|) (<= |fibo_#t~ret7| 3) (<= 5 |fibo_#in~n|) (<= fibo_~n 5)) (and (<= 5 |fibo_#t~ret7|) (<= fibo_~n 6) (<= |fibo_#t~ret7| 5) (<= 6 |fibo_#in~n|))))) [2021-08-26 09:00:33,036 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 14) no Hoare annotation was computed. [2021-08-26 09:00:33,036 INFO L857 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-08-26 09:00:33,036 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 14) no Hoare annotation was computed. [2021-08-26 09:00:33,036 INFO L860 garLoopResultBuilder]: At program point fiboENTRY(lines 7 15) the Hoare annotation is: true [2021-08-26 09:00:33,039 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 09:00:33,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:00:33 BoogieIcfgContainer [2021-08-26 09:00:33,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 09:00:33,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 09:00:33,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 09:00:33,047 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 09:00:33,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:00:17" (3/4) ... [2021-08-26 09:00:33,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 09:00:33,053 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo [2021-08-26 09:00:33,055 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-08-26 09:00:33,055 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 09:00:33,055 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 09:00:33,055 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 09:00:33,071 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 09:00:33,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 09:00:33,072 INFO L168 Benchmark]: Toolchain (without parser) took 16031.57 ms. Allocated memory was 52.4 MB in the beginning and 323.0 MB in the end (delta: 270.5 MB). Free memory was 29.7 MB in the beginning and 217.9 MB in the end (delta: -188.3 MB). Peak memory consumption was 80.4 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,072 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 09:00:33,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.54 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 33.9 MB in the end (delta: -4.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.51 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 33.9 MB in the beginning and 46.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,073 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 ms. Allocated memory is still 62.9 MB. Free memory was 46.8 MB in the beginning and 45.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,073 INFO L168 Benchmark]: RCFGBuilder took 280.38 ms. Allocated memory is still 62.9 MB. Free memory was 45.8 MB in the beginning and 34.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,074 INFO L168 Benchmark]: TraceAbstraction took 15480.92 ms. Allocated memory was 62.9 MB in the beginning and 323.0 MB in the end (delta: 260.0 MB). Free memory was 33.7 MB in the beginning and 221.1 MB in the end (delta: -187.4 MB). Peak memory consumption was 196.8 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,074 INFO L168 Benchmark]: Witness Printer took 24.63 ms. Allocated memory is still 323.0 MB. Free memory was 221.1 MB in the beginning and 217.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 09:00:33,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 169.54 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 33.9 MB in the end (delta: -4.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.51 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 33.9 MB in the beginning and 46.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.91 ms. Allocated memory is still 62.9 MB. Free memory was 46.8 MB in the beginning and 45.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 280.38 ms. Allocated memory is still 62.9 MB. Free memory was 45.8 MB in the beginning and 34.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15480.92 ms. Allocated memory was 62.9 MB in the beginning and 323.0 MB in the end (delta: 260.0 MB). Free memory was 33.7 MB in the beginning and 221.1 MB in the end (delta: -187.4 MB). Peak memory consumption was 196.8 MB. Max. memory is 16.1 GB. * Witness Printer took 24.63 ms. Allocated memory is still 323.0 MB. Free memory was 221.1 MB in the beginning and 217.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: 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 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15399.0ms, OverallIterations: 11, TraceHistogramMax: 51, EmptinessCheckTime: 26.0ms, AutomataDifference: 2343.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 496.2ms, InitialAbstractionConstructionTime: 13.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 233 SDtfs, 576 SDslu, 1197 SDs, 0 SdLazy, 1933 SolverSat, 627 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1215.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1986 GetRequests, 1782 SyntacticMatches, 24 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 1852.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=8, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 104.8ms AutomataMinimizationTime, 11 MinimizatonAttempts, 59 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 320 PreInvPairs, 437 NumberOfFragments, 102 HoareAnnotationTreeSize, 320 FomulaSimplifications, 846 FormulaSimplificationTreeSizeReduction, 174.8ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 1501 FormulaSimplificationTreeSizeReductionInter, 310.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 160.8ms SsaConstructionTime, 591.0ms SatisfiabilityAnalysisTime, 7869.4ms InterpolantComputationTime, 2741 NumberOfCodeBlocks, 2689 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 2721 ConstructedInterpolants, 0 QuantifiedInterpolants, 5831 SizeOfPredicates, 33 NumberOfNonLiveVariables, 3126 ConjunctsInSsa, 247 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 30255/38440 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 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 7 <= x RESULT: Ultimate proved your program to be correct! [2021-08-26 09:00:33,101 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...