./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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_2calls_8-1.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 fe4c237d03da6bf7a86f5cd898d20e467d10d950 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:47:37,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:47:37,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:47:37,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:47:37,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:47:37,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:47:37,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:47:37,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:47:37,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:47:37,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:47:37,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:47:37,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:47:37,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:47:37,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:47:37,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:47:37,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:47:37,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:47:37,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:47:37,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:47:37,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:47:37,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:47:37,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:47:37,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:47:37,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:47:37,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:47:37,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:47:37,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:47:37,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:47:37,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:47:37,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:47:37,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:47:37,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:47:37,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:47:37,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:47:37,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:47:37,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:47:37,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:47:37,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:47:37,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:47:37,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:47:37,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:47:37,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:47:37,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:47:37,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:47:37,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:47:37,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:47:37,981 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:47:37,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:47:37,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:47:37,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:47:37,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:47:37,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:47:37,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:47:37,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:47:37,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:47:37,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:47:37,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:47:37,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:47:37,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:47:37,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:47:37,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:47:37,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:47:37,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:47:37,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:47:37,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:47:37,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:47:37,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:47:37,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:47:37,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:47:37,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:47:37,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:47:37,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> fe4c237d03da6bf7a86f5cd898d20e467d10d950 [2020-10-20 01:47:38,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:47:38,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:47:38,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:47:38,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:47:38,241 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:47:38,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2020-10-20 01:47:38,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c5a439f/9564ac83036f4f07bc6578f70b58ef21/FLAG06f6d1fba [2020-10-20 01:47:38,822 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:47:38,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2020-10-20 01:47:38,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c5a439f/9564ac83036f4f07bc6578f70b58ef21/FLAG06f6d1fba [2020-10-20 01:47:39,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c5a439f/9564ac83036f4f07bc6578f70b58ef21 [2020-10-20 01:47:39,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:47:39,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:47:39,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:47:39,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:47:39,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:47:39,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b17495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39, skipping insertion in model container [2020-10-20 01:47:39,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:47:39,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:47:39,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:47:39,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:47:39,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:47:39,504 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:47:39,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39 WrapperNode [2020-10-20 01:47:39,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:47:39,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:47:39,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:47:39,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:47:39,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:47:39,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:47:39,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:47:39,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:47:39,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... [2020-10-20 01:47:39,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:47:39,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:47:39,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:47:39,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:47:39,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:47:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:47:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-20 01:47:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-20 01:47:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:47:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-20 01:47:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-20 01:47:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:47:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:47:39,893 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:47:39,893 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 01:47:39,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:47:39 BoogieIcfgContainer [2020-10-20 01:47:39,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:47:39,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:47:39,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:47:39,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:47:39,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:47:39" (1/3) ... [2020-10-20 01:47:39,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2836cd2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:47:39, skipping insertion in model container [2020-10-20 01:47:39,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:47:39" (2/3) ... [2020-10-20 01:47:39,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2836cd2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:47:39, skipping insertion in model container [2020-10-20 01:47:39,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:47:39" (3/3) ... [2020-10-20 01:47:39,906 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-10-20 01:47:39,919 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:47:39,928 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:47:39,951 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:47:40,006 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:47:40,007 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:47:40,007 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:47:40,007 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:47:40,008 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:47:40,008 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:47:40,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:47:40,009 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:47:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-20 01:47:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 01:47:40,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:40,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:40,055 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:40,063 INFO L82 PathProgramCache]: Analyzing trace with hash -2146840844, now seen corresponding path program 1 times [2020-10-20 01:47:40,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:40,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748980487] [2020-10-20 01:47:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:47:40,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748980487] [2020-10-20 01:47:40,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:47:40,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:47:40,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305882288] [2020-10-20 01:47:40,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:47:40,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:40,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:47:40,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:47:40,323 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2020-10-20 01:47:40,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:40,433 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-10-20 01:47:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:47:40,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-20 01:47:40,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:40,447 INFO L225 Difference]: With dead ends: 40 [2020-10-20 01:47:40,447 INFO L226 Difference]: Without dead ends: 27 [2020-10-20 01:47:40,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:47:40,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-20 01:47:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-20 01:47:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 01:47:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-10-20 01:47:40,515 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 10 [2020-10-20 01:47:40,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:40,516 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-20 01:47:40,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:47:40,516 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2020-10-20 01:47:40,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 01:47:40,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:40,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:40,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:47:40,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:40,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1412337332, now seen corresponding path program 1 times [2020-10-20 01:47:40,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:40,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526179913] [2020-10-20 01:47:40,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:47:40,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526179913] [2020-10-20 01:47:40,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:47:40,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:47:40,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4646186] [2020-10-20 01:47:40,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:47:40,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:40,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:47:40,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:47:40,594 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 5 states. [2020-10-20 01:47:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:40,659 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2020-10-20 01:47:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:47:40,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 01:47:40,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:40,661 INFO L225 Difference]: With dead ends: 33 [2020-10-20 01:47:40,661 INFO L226 Difference]: Without dead ends: 29 [2020-10-20 01:47:40,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:47:40,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-20 01:47:40,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-10-20 01:47:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 01:47:40,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-10-20 01:47:40,672 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2020-10-20 01:47:40,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:40,673 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-20 01:47:40,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:47:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2020-10-20 01:47:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:47:40,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:40,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:40,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:47:40,675 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:40,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:40,676 INFO L82 PathProgramCache]: Analyzing trace with hash -888595213, now seen corresponding path program 1 times [2020-10-20 01:47:40,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:40,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421170532] [2020-10-20 01:47:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-20 01:47:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:47:40,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421170532] [2020-10-20 01:47:40,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604912823] [2020-10-20 01:47:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:40,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:47:40,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:47:41,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:41,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2020-10-20 01:47:41,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164892510] [2020-10-20 01:47:41,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 01:47:41,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:41,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 01:47:41,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-20 01:47:41,071 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 10 states. [2020-10-20 01:47:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:41,291 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2020-10-20 01:47:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 01:47:41,292 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-20 01:47:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:41,295 INFO L225 Difference]: With dead ends: 55 [2020-10-20 01:47:41,295 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 01:47:41,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-20 01:47:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 01:47:41,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2020-10-20 01:47:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-20 01:47:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2020-10-20 01:47:41,310 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23 [2020-10-20 01:47:41,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:41,311 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-10-20 01:47:41,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 01:47:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2020-10-20 01:47:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:47:41,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:41,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:41,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 01:47:41,531 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:41,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:41,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1502460051, now seen corresponding path program 1 times [2020-10-20 01:47:41,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:41,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674647082] [2020-10-20 01:47:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:41,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:41,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:41,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:47:41,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674647082] [2020-10-20 01:47:41,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583745994] [2020-10-20 01:47:41,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:41,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:47:41,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:47:41,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:41,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-20 01:47:41,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889151462] [2020-10-20 01:47:41,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 01:47:41,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:41,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 01:47:41,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:47:41,859 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand 9 states. [2020-10-20 01:47:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:42,035 INFO L93 Difference]: Finished difference Result 51 states and 71 transitions. [2020-10-20 01:47:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:47:42,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-20 01:47:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:42,040 INFO L225 Difference]: With dead ends: 51 [2020-10-20 01:47:42,040 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 01:47:42,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:47:42,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 01:47:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-20 01:47:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-20 01:47:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2020-10-20 01:47:42,054 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 24 [2020-10-20 01:47:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:42,055 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2020-10-20 01:47:42,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 01:47:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2020-10-20 01:47:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-20 01:47:42,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:42,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:42,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:42,274 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:42,275 INFO L82 PathProgramCache]: Analyzing trace with hash -801267146, now seen corresponding path program 1 times [2020-10-20 01:47:42,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:42,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336571328] [2020-10-20 01:47:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-20 01:47:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-20 01:47:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 01:47:42,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336571328] [2020-10-20 01:47:42,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676703821] [2020-10-20 01:47:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:42,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 01:47:42,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 01:47:42,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:42,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2020-10-20 01:47:42,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061711311] [2020-10-20 01:47:42,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 01:47:42,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:42,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 01:47:42,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:47:42,550 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand 11 states. [2020-10-20 01:47:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:42,807 INFO L93 Difference]: Finished difference Result 105 states and 167 transitions. [2020-10-20 01:47:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:47:42,808 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-10-20 01:47:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:42,810 INFO L225 Difference]: With dead ends: 105 [2020-10-20 01:47:42,810 INFO L226 Difference]: Without dead ends: 63 [2020-10-20 01:47:42,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-10-20 01:47:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-20 01:47:42,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-20 01:47:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 01:47:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 92 transitions. [2020-10-20 01:47:42,825 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 92 transitions. Word has length 36 [2020-10-20 01:47:42,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:42,826 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 92 transitions. [2020-10-20 01:47:42,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 01:47:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2020-10-20 01:47:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 01:47:42,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:42,829 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:43,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:43,044 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:43,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:43,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1583643682, now seen corresponding path program 1 times [2020-10-20 01:47:43,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:43,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634458253] [2020-10-20 01:47:43,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:47:43,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634458253] [2020-10-20 01:47:43,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36374251] [2020-10-20 01:47:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:43,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 01:47:43,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 01:47:43,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:43,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2020-10-20 01:47:43,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021364497] [2020-10-20 01:47:43,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 01:47:43,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:43,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 01:47:43,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:47:43,335 INFO L87 Difference]: Start difference. First operand 63 states and 92 transitions. Second operand 13 states. [2020-10-20 01:47:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:43,783 INFO L93 Difference]: Finished difference Result 177 states and 321 transitions. [2020-10-20 01:47:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 01:47:43,784 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-20 01:47:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:43,788 INFO L225 Difference]: With dead ends: 177 [2020-10-20 01:47:43,788 INFO L226 Difference]: Without dead ends: 117 [2020-10-20 01:47:43,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-20 01:47:43,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-20 01:47:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2020-10-20 01:47:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-20 01:47:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 166 transitions. [2020-10-20 01:47:43,814 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 166 transitions. Word has length 37 [2020-10-20 01:47:43,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:43,815 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 166 transitions. [2020-10-20 01:47:43,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 01:47:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2020-10-20 01:47:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:47:43,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:43,819 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:44,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:44,035 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:44,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:44,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1063158393, now seen corresponding path program 1 times [2020-10-20 01:47:44,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:44,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758441494] [2020-10-20 01:47:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-20 01:47:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-20 01:47:44,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758441494] [2020-10-20 01:47:44,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902541289] [2020-10-20 01:47:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:44,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 01:47:44,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-20 01:47:44,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:44,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2020-10-20 01:47:44,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443878503] [2020-10-20 01:47:44,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 01:47:44,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:44,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 01:47:44,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-20 01:47:44,361 INFO L87 Difference]: Start difference. First operand 103 states and 166 transitions. Second operand 14 states. [2020-10-20 01:47:44,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:44,931 INFO L93 Difference]: Finished difference Result 255 states and 495 transitions. [2020-10-20 01:47:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-20 01:47:44,931 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-10-20 01:47:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:44,938 INFO L225 Difference]: With dead ends: 255 [2020-10-20 01:47:44,941 INFO L226 Difference]: Without dead ends: 155 [2020-10-20 01:47:44,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2020-10-20 01:47:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-20 01:47:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2020-10-20 01:47:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 01:47:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2020-10-20 01:47:44,978 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 51 [2020-10-20 01:47:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:44,978 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2020-10-20 01:47:44,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 01:47:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2020-10-20 01:47:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-20 01:47:44,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:44,984 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:45,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-20 01:47:45,199 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1732889556, now seen corresponding path program 1 times [2020-10-20 01:47:45,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:45,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639446987] [2020-10-20 01:47:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-20 01:47:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 40 proven. 57 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-20 01:47:45,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639446987] [2020-10-20 01:47:45,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116069757] [2020-10-20 01:47:45,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:45,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 01:47:45,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 13 proven. 92 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-20 01:47:45,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:45,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2020-10-20 01:47:45,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798350501] [2020-10-20 01:47:45,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-20 01:47:45,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:45,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-20 01:47:45,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:47:45,682 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand 16 states. [2020-10-20 01:47:46,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:46,297 INFO L93 Difference]: Finished difference Result 240 states and 462 transitions. [2020-10-20 01:47:46,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-20 01:47:46,298 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 93 [2020-10-20 01:47:46,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:46,301 INFO L225 Difference]: With dead ends: 240 [2020-10-20 01:47:46,301 INFO L226 Difference]: Without dead ends: 107 [2020-10-20 01:47:46,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2020-10-20 01:47:46,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-20 01:47:46,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2020-10-20 01:47:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-20 01:47:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2020-10-20 01:47:46,343 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 93 [2020-10-20 01:47:46,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:46,345 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2020-10-20 01:47:46,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-20 01:47:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2020-10-20 01:47:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-20 01:47:46,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:46,353 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:46,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:46,554 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:46,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:46,555 INFO L82 PathProgramCache]: Analyzing trace with hash 740260986, now seen corresponding path program 2 times [2020-10-20 01:47:46,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:46,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525001726] [2020-10-20 01:47:46,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-20 01:47:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-20 01:47:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-20 01:47:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 67 proven. 142 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2020-10-20 01:47:46,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525001726] [2020-10-20 01:47:46,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162870786] [2020-10-20 01:47:46,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:47,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 01:47:47,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:47:47,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 01:47:47,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 30 proven. 217 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2020-10-20 01:47:47,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:47,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 17 [2020-10-20 01:47:47,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978910948] [2020-10-20 01:47:47,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-20 01:47:47,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:47,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-20 01:47:47,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-20 01:47:47,201 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand 17 states. [2020-10-20 01:47:47,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:47,898 INFO L93 Difference]: Finished difference Result 214 states and 372 transitions. [2020-10-20 01:47:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-20 01:47:47,899 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 148 [2020-10-20 01:47:47,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:47,902 INFO L225 Difference]: With dead ends: 214 [2020-10-20 01:47:47,902 INFO L226 Difference]: Without dead ends: 134 [2020-10-20 01:47:47,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2020-10-20 01:47:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-20 01:47:47,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2020-10-20 01:47:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 01:47:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2020-10-20 01:47:47,920 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 148 [2020-10-20 01:47:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:47,921 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2020-10-20 01:47:47,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-20 01:47:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2020-10-20 01:47:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-20 01:47:47,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:47,926 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:48,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:48,141 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:48,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:48,142 INFO L82 PathProgramCache]: Analyzing trace with hash 434982328, now seen corresponding path program 3 times [2020-10-20 01:47:48,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:48,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768190029] [2020-10-20 01:47:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-20 01:47:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-20 01:47:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 182 proven. 371 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2020-10-20 01:47:48,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768190029] [2020-10-20 01:47:48,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643259907] [2020-10-20 01:47:48,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:48,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-20 01:47:48,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:47:48,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 01:47:48,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 521 proven. 33 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2020-10-20 01:47:49,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:49,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2020-10-20 01:47:49,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343602330] [2020-10-20 01:47:49,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-20 01:47:49,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:49,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-20 01:47:49,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-20 01:47:49,157 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand 20 states. [2020-10-20 01:47:49,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:49,784 INFO L93 Difference]: Finished difference Result 239 states and 381 transitions. [2020-10-20 01:47:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 01:47:49,785 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 282 [2020-10-20 01:47:49,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:49,787 INFO L225 Difference]: With dead ends: 239 [2020-10-20 01:47:49,787 INFO L226 Difference]: Without dead ends: 130 [2020-10-20 01:47:49,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2020-10-20 01:47:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-20 01:47:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-20 01:47:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-20 01:47:49,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2020-10-20 01:47:49,804 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 177 transitions. Word has length 282 [2020-10-20 01:47:49,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:49,805 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-10-20 01:47:49,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-20 01:47:49,805 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 177 transitions. [2020-10-20 01:47:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-20 01:47:49,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:49,810 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:50,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-20 01:47:50,024 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:50,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:50,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1603840300, now seen corresponding path program 4 times [2020-10-20 01:47:50,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:50,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529922593] [2020-10-20 01:47:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:47:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-20 01:47:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 94 proven. 558 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-10-20 01:47:50,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529922593] [2020-10-20 01:47:50,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317551201] [2020-10-20 01:47:50,796 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:50,891 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-20 01:47:50,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:47:50,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 01:47:50,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 94 proven. 558 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-10-20 01:47:51,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:51,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2020-10-20 01:47:51,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564534714] [2020-10-20 01:47:51,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 01:47:51,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:51,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 01:47:51,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-20 01:47:51,019 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. Second operand 14 states. [2020-10-20 01:47:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:51,342 INFO L93 Difference]: Finished difference Result 316 states and 481 transitions. [2020-10-20 01:47:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 01:47:51,345 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 283 [2020-10-20 01:47:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:51,357 INFO L225 Difference]: With dead ends: 316 [2020-10-20 01:47:51,357 INFO L226 Difference]: Without dead ends: 312 [2020-10-20 01:47:51,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-10-20 01:47:51,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-20 01:47:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 296. [2020-10-20 01:47:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-20 01:47:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 450 transitions. [2020-10-20 01:47:51,402 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 450 transitions. Word has length 283 [2020-10-20 01:47:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:51,404 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 450 transitions. [2020-10-20 01:47:51,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 01:47:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 450 transitions. [2020-10-20 01:47:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-10-20 01:47:51,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:51,420 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 39, 39, 33, 33, 21, 21, 21, 21, 21, 21, 21, 19, 19, 19, 19, 19, 19, 19, 14, 12, 9, 6, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:51,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:51,633 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:51,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:51,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1155010386, now seen corresponding path program 5 times [2020-10-20 01:47:51,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:51,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754691507] [2020-10-20 01:47:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:51,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:47:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-20 01:47:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-20 01:47:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:47:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-20 01:47:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-20 01:47:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 8988 backedges. 329 proven. 1458 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2020-10-20 01:47:53,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754691507] [2020-10-20 01:47:53,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195685507] [2020-10-20 01:47:53,742 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:53,931 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2020-10-20 01:47:53,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:47:53,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 01:47:53,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 8988 backedges. 3801 proven. 84 refuted. 0 times theorem prover too weak. 5103 trivial. 0 not checked. [2020-10-20 01:47:54,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:54,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2020-10-20 01:47:54,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730160904] [2020-10-20 01:47:54,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 01:47:54,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:54,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 01:47:54,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-20 01:47:54,276 INFO L87 Difference]: Start difference. First operand 296 states and 450 transitions. Second operand 22 states. [2020-10-20 01:47:55,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:55,031 INFO L93 Difference]: Finished difference Result 637 states and 1072 transitions. [2020-10-20 01:47:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-20 01:47:55,032 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 556 [2020-10-20 01:47:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:55,038 INFO L225 Difference]: With dead ends: 637 [2020-10-20 01:47:55,038 INFO L226 Difference]: Without dead ends: 351 [2020-10-20 01:47:55,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1135, Unknown=0, NotChecked=0, Total=1332 [2020-10-20 01:47:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-20 01:47:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 333. [2020-10-20 01:47:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-20 01:47:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 505 transitions. [2020-10-20 01:47:55,068 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 505 transitions. Word has length 556 [2020-10-20 01:47:55,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:55,069 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 505 transitions. [2020-10-20 01:47:55,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 01:47:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 505 transitions. [2020-10-20 01:47:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-20 01:47:55,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:55,080 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 32, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 8, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:55,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:55,295 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:55,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:55,296 INFO L82 PathProgramCache]: Analyzing trace with hash 976400355, now seen corresponding path program 6 times [2020-10-20 01:47:55,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:55,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114623012] [2020-10-20 01:47:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:47:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:55,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-20 01:47:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:47:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-20 01:47:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:47:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:47:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:47:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:47:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6090 backedges. 855 proven. 965 refuted. 0 times theorem prover too weak. 4270 trivial. 0 not checked. [2020-10-20 01:47:56,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114623012] [2020-10-20 01:47:56,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265759911] [2020-10-20 01:47:56,865 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:47:57,000 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2020-10-20 01:47:57,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:47:57,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 01:47:57,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:47:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6090 backedges. 708 proven. 104 refuted. 0 times theorem prover too weak. 5278 trivial. 0 not checked. [2020-10-20 01:47:57,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:47:57,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 24 [2020-10-20 01:47:57,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400412850] [2020-10-20 01:47:57,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-20 01:47:57,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:47:57,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-20 01:47:57,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2020-10-20 01:47:57,447 INFO L87 Difference]: Start difference. First operand 333 states and 505 transitions. Second operand 24 states. [2020-10-20 01:47:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:47:58,926 INFO L93 Difference]: Finished difference Result 867 states and 1567 transitions. [2020-10-20 01:47:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-20 01:47:58,927 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 460 [2020-10-20 01:47:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:47:58,935 INFO L225 Difference]: With dead ends: 867 [2020-10-20 01:47:58,936 INFO L226 Difference]: Without dead ends: 542 [2020-10-20 01:47:58,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=2495, Unknown=0, NotChecked=0, Total=2862 [2020-10-20 01:47:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-20 01:47:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 393. [2020-10-20 01:47:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-20 01:47:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 615 transitions. [2020-10-20 01:47:58,974 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 615 transitions. Word has length 460 [2020-10-20 01:47:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:47:58,975 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 615 transitions. [2020-10-20 01:47:58,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-20 01:47:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 615 transitions. [2020-10-20 01:47:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-20 01:47:58,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:47:58,980 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:47:59,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-20 01:47:59,194 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:47:59,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:47:59,195 INFO L82 PathProgramCache]: Analyzing trace with hash -232840799, now seen corresponding path program 7 times [2020-10-20 01:47:59,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:47:59,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100277356] [2020-10-20 01:47:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:47:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:47:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:59,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:47:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:47:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-20 01:48:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-20 01:48:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:01,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-10-20 01:48:02,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100277356] [2020-10-20 01:48:02,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986738232] [2020-10-20 01:48:02,498 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:48:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:02,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 271 conjunts are in the unsatisfiable core [2020-10-20 01:48:02,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:48:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-10-20 01:48:04,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:48:04,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 52 [2020-10-20 01:48:04,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042852237] [2020-10-20 01:48:04,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-10-20 01:48:04,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:48:04,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-10-20 01:48:04,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2020-10-20 01:48:04,714 INFO L87 Difference]: Start difference. First operand 393 states and 615 transitions. Second operand 52 states. [2020-10-20 01:48:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:48:05,890 INFO L93 Difference]: Finished difference Result 490 states and 835 transitions. [2020-10-20 01:48:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-20 01:48:05,891 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 460 [2020-10-20 01:48:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:48:05,900 INFO L225 Difference]: With dead ends: 490 [2020-10-20 01:48:05,900 INFO L226 Difference]: Without dead ends: 486 [2020-10-20 01:48:05,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 731 GetRequests, 646 SyntacticMatches, 34 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=129, Invalid=2627, Unknown=0, NotChecked=0, Total=2756 [2020-10-20 01:48:05,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-10-20 01:48:05,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 408. [2020-10-20 01:48:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-10-20 01:48:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 652 transitions. [2020-10-20 01:48:05,942 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 652 transitions. Word has length 460 [2020-10-20 01:48:05,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:48:05,943 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 652 transitions. [2020-10-20 01:48:05,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-10-20 01:48:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 652 transitions. [2020-10-20 01:48:05,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-10-20 01:48:05,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:48:05,952 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 48, 47, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 19, 18, 12, 10, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:48:06,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-20 01:48:06,166 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:48:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:48:06,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1970275366, now seen corresponding path program 8 times [2020-10-20 01:48:06,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:48:06,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624009034] [2020-10-20 01:48:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:48:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:06,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:48:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:06,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:06,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:06,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-20 01:48:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-20 01:48:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-20 01:48:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:07,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-20 01:48:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-20 01:48:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 18913 backedges. 1458 proven. 3310 refuted. 0 times theorem prover too weak. 14145 trivial. 0 not checked. [2020-10-20 01:48:08,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624009034] [2020-10-20 01:48:08,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829084706] [2020-10-20 01:48:08,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:48:09,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 01:48:09,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:48:09,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-20 01:48:09,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:48:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 18913 backedges. 1218 proven. 1304 refuted. 0 times theorem prover too weak. 16391 trivial. 0 not checked. [2020-10-20 01:48:09,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:48:09,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13] total 32 [2020-10-20 01:48:09,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798236687] [2020-10-20 01:48:09,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-20 01:48:09,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:48:09,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-20 01:48:09,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2020-10-20 01:48:09,876 INFO L87 Difference]: Start difference. First operand 408 states and 652 transitions. Second operand 32 states. [2020-10-20 01:48:12,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:48:12,229 INFO L93 Difference]: Finished difference Result 761 states and 1343 transitions. [2020-10-20 01:48:12,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-20 01:48:12,230 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 801 [2020-10-20 01:48:12,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:48:12,236 INFO L225 Difference]: With dead ends: 761 [2020-10-20 01:48:12,236 INFO L226 Difference]: Without dead ends: 279 [2020-10-20 01:48:12,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1110 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2088 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=749, Invalid=6223, Unknown=0, NotChecked=0, Total=6972 [2020-10-20 01:48:12,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-20 01:48:12,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 233. [2020-10-20 01:48:12,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-20 01:48:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 336 transitions. [2020-10-20 01:48:12,271 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 336 transitions. Word has length 801 [2020-10-20 01:48:12,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:48:12,272 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 336 transitions. [2020-10-20 01:48:12,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-20 01:48:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 336 transitions. [2020-10-20 01:48:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-10-20 01:48:12,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:48:12,284 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 63, 63, 52, 52, 33, 33, 33, 33, 33, 33, 33, 31, 31, 31, 31, 31, 31, 31, 21, 19, 14, 11, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:48:12,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-20 01:48:12,491 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:48:12,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:48:12,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1018339636, now seen corresponding path program 9 times [2020-10-20 01:48:12,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:48:12,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15932628] [2020-10-20 01:48:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:48:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:12,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:48:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-20 01:48:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-20 01:48:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-20 01:48:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:13,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-20 01:48:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-20 01:48:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:48:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-20 01:48:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:48:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:48:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:48:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:15,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:48:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 23016 backedges. 703 proven. 2899 refuted. 0 times theorem prover too weak. 19414 trivial. 0 not checked. [2020-10-20 01:48:16,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15932628] [2020-10-20 01:48:16,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944845541] [2020-10-20 01:48:16,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:48:16,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2020-10-20 01:48:16,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:48:16,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-20 01:48:16,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:48:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 23016 backedges. 476 proven. 2322 refuted. 0 times theorem prover too weak. 20218 trivial. 0 not checked. [2020-10-20 01:48:17,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:48:17,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 22 [2020-10-20 01:48:17,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950545140] [2020-10-20 01:48:17,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 01:48:17,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:48:17,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 01:48:17,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-10-20 01:48:17,296 INFO L87 Difference]: Start difference. First operand 233 states and 336 transitions. Second operand 22 states. [2020-10-20 01:48:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:48:18,182 INFO L93 Difference]: Finished difference Result 471 states and 717 transitions. [2020-10-20 01:48:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-20 01:48:18,184 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 882 [2020-10-20 01:48:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:48:18,185 INFO L225 Difference]: With dead ends: 471 [2020-10-20 01:48:18,185 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:48:18,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1172 GetRequests, 1135 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=1202, Unknown=0, NotChecked=0, Total=1406 [2020-10-20 01:48:18,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:48:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:48:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:48:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:48:18,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 882 [2020-10-20 01:48:18,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:48:18,190 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:48:18,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 01:48:18,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:48:18,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:48:18,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:48:18,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:48:20,472 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 26 [2020-10-20 01:48:20,585 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 1 [2020-10-20 01:48:20,876 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 6 [2020-10-20 01:48:21,671 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 52 [2020-10-20 01:48:21,952 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 7 [2020-10-20 01:48:21,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:48:21,956 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:48:21,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:48:21,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:48:21,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:48:21,956 INFO L270 CegarLoopResult]: At program point L43(lines 37 44) the Hoare annotation is: (<= 8 ULTIMATE.start_main_~x~0) [2020-10-20 01:48:21,956 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-20 01:48:21,957 INFO L274 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-10-20 01:48:21,957 INFO L270 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 8) (<= 8 ULTIMATE.start_main_~x~0)) [2020-10-20 01:48:21,957 INFO L274 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-10-20 01:48:21,957 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2020-10-20 01:48:21,957 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 01:48:21,958 INFO L277 CegarLoopResult]: At program point fibo2ENTRY(lines 19 27) the Hoare annotation is: true [2020-10-20 01:48:21,958 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (not (<= |fibo2_#in~n| 2))) [2020-10-20 01:48:21,958 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-10-20 01:48:21,959 INFO L270 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) .cse0) (and (<= |fibo2_#t~ret9| 3) (<= 3 |fibo2_#t~ret9|) .cse0 (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5)) (and .cse0 (<= 8 |fibo2_#in~n|)) (and (<= |fibo2_#in~n| 6) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) .cse0 (<= 5 |fibo2_#t~ret9|)))) [2020-10-20 01:48:21,959 INFO L274 CegarLoopResult]: For program point L22(lines 22 26) no Hoare annotation was computed. [2020-10-20 01:48:21,959 INFO L274 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-10-20 01:48:21,960 INFO L274 CegarLoopResult]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-10-20 01:48:21,960 INFO L274 CegarLoopResult]: For program point fibo2FINAL(lines 19 27) no Hoare annotation was computed. [2020-10-20 01:48:21,960 INFO L274 CegarLoopResult]: For program point fibo2EXIT(lines 19 27) no Hoare annotation was computed. [2020-10-20 01:48:21,960 INFO L277 CegarLoopResult]: At program point fibo1ENTRY(lines 9 17) the Hoare annotation is: true [2020-10-20 01:48:21,960 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (<= 2 |fibo1_#in~n|) (= fibo1_~n |fibo1_#in~n|)) [2020-10-20 01:48:21,960 INFO L274 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-10-20 01:48:21,961 INFO L270 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (let ((.cse1 (<= |fibo1_#in~n| 3)) (.cse3 (<= 1 |fibo1_#t~ret7|)) (.cse4 (<= |fibo1_#t~ret7| 1)) (.cse5 (<= |fibo1_#in~n| 2)) (.cse6 (= fibo1_~n |fibo1_#in~n|))) (let ((.cse0 (and .cse5 (<= 2 |fibo1_#in~n|) .cse6)) (.cse2 (and .cse1 .cse3 .cse4 .cse6 (<= 3 |fibo1_#in~n|)))) (and (or .cse0 (not .cse1) .cse2) (or (and .cse3 .cse4) (not .cse5)) (or (and (<= 7 |fibo1_#in~n|) .cse6 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 |fibo1_#in~n|) .cse6 (<= |fibo1_#t~ret7| 3)) .cse0 (and (<= 5 |fibo1_#t~ret7|) (<= |fibo1_#in~n| 6) .cse6 (<= |fibo1_#t~ret7| 5) (<= 6 |fibo1_#in~n|)) (and .cse6 (<= |fibo1_#t~ret7| 2) (<= |fibo1_#in~n| 4) (<= 2 |fibo1_#t~ret7|)) (and .cse6 (<= 9 |fibo1_#in~n|)) .cse2 (and (<= 8 fibo1_~n) .cse6 (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13)))))) [2020-10-20 01:48:21,961 INFO L274 CegarLoopResult]: For program point L12(lines 12 16) no Hoare annotation was computed. [2020-10-20 01:48:21,962 INFO L274 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-10-20 01:48:21,962 INFO L274 CegarLoopResult]: For program point fibo1FINAL(lines 9 17) no Hoare annotation was computed. [2020-10-20 01:48:21,962 INFO L274 CegarLoopResult]: For program point L10(lines 10 16) no Hoare annotation was computed. [2020-10-20 01:48:21,962 INFO L274 CegarLoopResult]: For program point fibo1EXIT(lines 9 17) no Hoare annotation was computed. [2020-10-20 01:48:21,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:48:21 BoogieIcfgContainer [2020-10-20 01:48:21,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:48:21,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:48:21,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:48:21,977 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:48:21,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:47:39" (3/4) ... [2020-10-20 01:48:21,981 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:48:21,989 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2020-10-20 01:48:21,989 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2020-10-20 01:48:21,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:48:21,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 01:48:21,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:48:21,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:48:22,041 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:48:22,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:48:22,043 INFO L168 Benchmark]: Toolchain (without parser) took 42863.17 ms. Allocated memory was 36.2 MB in the beginning and 852.0 MB in the end (delta: 815.8 MB). Free memory was 17.1 MB in the beginning and 64.6 MB in the end (delta: -47.5 MB). Peak memory consumption was 768.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,043 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.31 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 16.2 MB in the beginning and 26.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 44.0 MB. Free memory was 26.0 MB in the beginning and 24.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,045 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 23.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,046 INFO L168 Benchmark]: RCFGBuilder took 336.12 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 23.1 MB in the beginning and 21.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,046 INFO L168 Benchmark]: TraceAbstraction took 42079.66 ms. Allocated memory was 45.6 MB in the beginning and 852.0 MB in the end (delta: 806.4 MB). Free memory was 20.5 MB in the beginning and 64.6 MB in the end (delta: -44.0 MB). Peak memory consumption was 762.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:22,047 INFO L168 Benchmark]: Witness Printer took 64.15 ms. Allocated memory is still 852.0 MB. Free memory is still 64.6 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:48:22,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 318.31 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 16.2 MB in the beginning and 26.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 44.0 MB. Free memory was 26.0 MB in the beginning and 24.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 20.80 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 23.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 336.12 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 23.1 MB in the beginning and 21.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 42079.66 ms. Allocated memory was 45.6 MB in the beginning and 852.0 MB in the end (delta: 806.4 MB). Free memory was 20.5 MB in the beginning and 64.6 MB in the end (delta: -44.0 MB). Peak memory consumption was 762.3 MB. Max. memory is 14.3 GB. * Witness Printer took 64.15 ms. Allocated memory is still 852.0 MB. Free memory is still 64.6 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 8 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.3s, OverallIterations: 16, TraceHistogramMax: 66, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 582 SDtfs, 1082 SDslu, 6715 SDs, 0 SdLazy, 8828 SolverSat, 1145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5837 GetRequests, 5351 SyntacticMatches, 35 SemanticMatches, 451 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4113 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 416 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 1283 PreInvPairs, 2153 NumberOfFragments, 226 HoareAnnotationTreeSize, 1283 FomulaSimplifications, 26940 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 8 FomulaSimplificationsInter, 23432 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 19.9s InterpolantComputationTime, 8293 NumberOfCodeBlocks, 7248 NumberOfCodeBlocksAsserted, 103 NumberOfCheckSat, 8263 ConstructedInterpolants, 0 QuantifiedInterpolants, 7039145 SizeOfPredicates, 79 NumberOfNonLiveVariables, 7177 ConjunctsInSsa, 428 ConjunctsInUnsatCore, 30 InterpolantComputations, 2 PerfectInterpolantSequences, 118092/136696 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...