./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Fibonacci02.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 b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:38:53,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:38:53,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:38:54,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:38:54,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:38:54,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:38:54,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:38:54,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:38:54,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:38:54,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:38:54,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:38:54,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:38:54,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:38:54,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:38:54,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:38:54,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:38:54,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:38:54,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:38:54,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:38:54,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:38:54,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:38:54,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:38:54,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:38:54,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:38:54,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:38:54,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:38:54,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:38:54,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:38:54,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:38:54,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:38:54,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:38:54,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:38:54,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:38:54,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:38:54,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:38:54,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:38:54,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:38:54,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:38:54,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:38:54,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:38:54,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:38:54,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:38:54,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:38:54,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:38:54,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:38:54,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:38:54,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:38:54,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:38:54,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:38:54,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:38:54,091 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:38:54,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:38:54,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:38:54,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:38:54,093 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:38:54,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:38:54,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:38:54,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:38:54,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:38:54,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:38:54,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:38:54,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:38:54,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:38:54,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:38:54,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:38:54,095 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:38:54,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:38:54,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:38:54,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:38:54,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 [2021-12-22 11:38:54,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:38:54,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:38:54,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:38:54,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:38:54,295 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:38:54,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci02.c [2021-12-22 11:38:54,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf4c4cb8/0ef80aa633c1453f81cfa6c22eab68e9/FLAG36a0cf14d [2021-12-22 11:38:54,696 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:38:54,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c [2021-12-22 11:38:54,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf4c4cb8/0ef80aa633c1453f81cfa6c22eab68e9/FLAG36a0cf14d [2021-12-22 11:38:54,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf4c4cb8/0ef80aa633c1453f81cfa6c22eab68e9 [2021-12-22 11:38:54,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:38:54,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:38:54,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:38:54,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:38:54,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:38:54,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ac00d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54, skipping insertion in model container [2021-12-22 11:38:54,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:38:54,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:38:54,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2021-12-22 11:38:54,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:38:54,877 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:38:54,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2021-12-22 11:38:54,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:38:54,897 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:38:54,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54 WrapperNode [2021-12-22 11:38:54,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:38:54,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:38:54,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:38:54,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:38:54,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,921 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-12-22 11:38:54,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:38:54,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:38:54,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:38:54,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:38:54,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:38:54,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:38:54,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:38:54,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:38:54,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (1/1) ... [2021-12-22 11:38:54,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:38:54,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:38:54,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 11:38:55,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 11:38:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-12-22 11:38:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-12-22 11:38:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:38:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:38:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:38:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:38:55,089 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:38:55,091 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:38:55,198 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:38:55,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:38:55,203 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 11:38:55,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:38:55 BoogieIcfgContainer [2021-12-22 11:38:55,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:38:55,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:38:55,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:38:55,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:38:55,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:38:54" (1/3) ... [2021-12-22 11:38:55,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45939016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:38:55, skipping insertion in model container [2021-12-22 11:38:55,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:38:54" (2/3) ... [2021-12-22 11:38:55,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45939016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:38:55, skipping insertion in model container [2021-12-22 11:38:55,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:38:55" (3/3) ... [2021-12-22 11:38:55,213 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2021-12-22 11:38:55,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:38:55,219 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:38:55,263 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:38:55,269 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 11:38:55,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:38:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-22 11:38:55,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-22 11:38:55,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:55,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:55,288 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:55,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 117289724, now seen corresponding path program 1 times [2021-12-22 11:38:55,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:55,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570001987] [2021-12-22 11:38:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:55,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 11:38:55,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:55,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570001987] [2021-12-22 11:38:55,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570001987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:38:55,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:38:55,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 11:38:55,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798670318] [2021-12-22 11:38:55,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:38:55,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:38:55,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:38:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:38:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 11:38:55,525 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:38:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:38:55,597 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-12-22 11:38:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:38:55,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-12-22 11:38:55,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:38:55,604 INFO L225 Difference]: With dead ends: 28 [2021-12-22 11:38:55,604 INFO L226 Difference]: Without dead ends: 18 [2021-12-22 11:38:55,606 INFO L932 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 [2021-12-22 11:38:55,610 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:38:55,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 40 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:38:55,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-22 11:38:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-22 11:38:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-22 11:38:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-12-22 11:38:55,638 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2021-12-22 11:38:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:38:55,639 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-12-22 11:38:55,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:38:55,639 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-12-22 11:38:55,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-22 11:38:55,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:55,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:55,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 11:38:55,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:55,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash 36927066, now seen corresponding path program 1 times [2021-12-22 11:38:55,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:55,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169679013] [2021-12-22 11:38:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:55,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 11:38:55,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:55,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169679013] [2021-12-22 11:38:55,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169679013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:38:55,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:38:55,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 11:38:55,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108098128] [2021-12-22 11:38:55,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:38:55,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:38:55,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:38:55,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:38:55,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 11:38:55,759 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:38:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:38:55,814 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2021-12-22 11:38:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:38:55,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-22 11:38:55,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:38:55,817 INFO L225 Difference]: With dead ends: 24 [2021-12-22 11:38:55,817 INFO L226 Difference]: Without dead ends: 20 [2021-12-22 11:38:55,819 INFO L932 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 [2021-12-22 11:38:55,821 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:38:55,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 31 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:38:55,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-22 11:38:55,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-12-22 11:38:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-22 11:38:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-12-22 11:38:55,828 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2021-12-22 11:38:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:38:55,830 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-12-22 11:38:55,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:38:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-12-22 11:38:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-22 11:38:55,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:55,833 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:55,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 11:38:55,833 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:55,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash 703243533, now seen corresponding path program 1 times [2021-12-22 11:38:55,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:55,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333649718] [2021-12-22 11:38:55,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:55,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 11:38:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 11:38:55,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:55,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333649718] [2021-12-22 11:38:55,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333649718] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:38:55,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154839978] [2021-12-22 11:38:55,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:55,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:55,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:38:55,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:38:55,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 11:38:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:56,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 11:38:56,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:38:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 11:38:56,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:38:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-22 11:38:56,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154839978] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:38:56,349 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:38:56,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2021-12-22 11:38:56,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022261719] [2021-12-22 11:38:56,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:38:56,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:38:56,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:38:56,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:38:56,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:38:56,350 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-22 11:38:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:38:56,411 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2021-12-22 11:38:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 11:38:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 23 [2021-12-22 11:38:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:38:56,412 INFO L225 Difference]: With dead ends: 35 [2021-12-22 11:38:56,412 INFO L226 Difference]: Without dead ends: 20 [2021-12-22 11:38:56,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-12-22 11:38:56,414 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:38:56,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 64 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:38:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-22 11:38:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-22 11:38:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-22 11:38:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-12-22 11:38:56,418 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23 [2021-12-22 11:38:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:38:56,418 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-12-22 11:38:56,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-22 11:38:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-12-22 11:38:56,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-22 11:38:56,419 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:56,420 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:56,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 11:38:56,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:56,643 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:56,644 INFO L85 PathProgramCache]: Analyzing trace with hash 187716987, now seen corresponding path program 1 times [2021-12-22 11:38:56,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:56,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382205955] [2021-12-22 11:38:56,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:56,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:56,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-22 11:38:56,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:56,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382205955] [2021-12-22 11:38:56,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382205955] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:38:56,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822716682] [2021-12-22 11:38:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:56,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:56,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:38:56,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:38:56,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 11:38:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:56,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 11:38:56,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:38:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-22 11:38:56,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:38:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-22 11:38:56,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822716682] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:38:56,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:38:56,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2021-12-22 11:38:56,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816472454] [2021-12-22 11:38:56,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:38:56,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 11:38:56,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:38:56,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 11:38:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-12-22 11:38:56,927 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-22 11:38:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:38:56,982 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-12-22 11:38:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 11:38:56,983 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 24 [2021-12-22 11:38:56,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:38:56,984 INFO L225 Difference]: With dead ends: 38 [2021-12-22 11:38:56,984 INFO L226 Difference]: Without dead ends: 34 [2021-12-22 11:38:56,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:38:56,985 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:38:56,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 58 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:38:56,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-22 11:38:56,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-12-22 11:38:56,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2021-12-22 11:38:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-12-22 11:38:56,992 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24 [2021-12-22 11:38:56,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:38:56,993 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-12-22 11:38:56,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-22 11:38:56,993 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-12-22 11:38:56,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-22 11:38:56,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:56,994 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:57,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 11:38:57,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-22 11:38:57,208 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1151618030, now seen corresponding path program 2 times [2021-12-22 11:38:57,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:57,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926799232] [2021-12-22 11:38:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:57,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:57,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:57,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:38:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:57,298 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-22 11:38:57,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:57,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926799232] [2021-12-22 11:38:57,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926799232] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:38:57,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707753199] [2021-12-22 11:38:57,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 11:38:57,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:57,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:38:57,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:38:57,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 11:38:57,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 11:38:57,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:38:57,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:38:57,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:38:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-22 11:38:57,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:38:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-22 11:38:57,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707753199] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:38:57,759 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:38:57,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17 [2021-12-22 11:38:57,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915133220] [2021-12-22 11:38:57,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:38:57,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-22 11:38:57,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:38:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-22 11:38:57,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:38:57,761 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2021-12-22 11:38:57,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:38:57,934 INFO L93 Difference]: Finished difference Result 69 states and 106 transitions. [2021-12-22 11:38:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 11:38:57,935 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) Word has length 37 [2021-12-22 11:38:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:38:57,935 INFO L225 Difference]: With dead ends: 69 [2021-12-22 11:38:57,935 INFO L226 Difference]: Without dead ends: 38 [2021-12-22 11:38:57,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2021-12-22 11:38:57,937 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 50 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:38:57,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 93 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:38:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-22 11:38:57,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-12-22 11:38:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2021-12-22 11:38:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2021-12-22 11:38:57,941 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2021-12-22 11:38:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:38:57,942 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-12-22 11:38:57,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2021-12-22 11:38:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2021-12-22 11:38:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 11:38:57,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:57,943 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:57,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 11:38:58,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:58,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1916996739, now seen corresponding path program 3 times [2021-12-22 11:38:58,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:58,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530437628] [2021-12-22 11:38:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:58,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:38:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:38:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:38:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-12-22 11:38:58,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:58,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530437628] [2021-12-22 11:38:58,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530437628] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:38:58,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395797657] [2021-12-22 11:38:58,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 11:38:58,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:38:58,303 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:38:58,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 11:38:58,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-22 11:38:58,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:38:58,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:38:58,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:38:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 89 proven. 32 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-12-22 11:38:58,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:38:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 89 proven. 41 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-12-22 11:38:58,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395797657] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:38:58,771 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:38:58,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 17 [2021-12-22 11:38:58,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468849844] [2021-12-22 11:38:58,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:38:58,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-22 11:38:58,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:38:58,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-22 11:38:58,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:38:58,773 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-22 11:38:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:38:58,904 INFO L93 Difference]: Finished difference Result 94 states and 140 transitions. [2021-12-22 11:38:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 11:38:58,905 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) Word has length 79 [2021-12-22 11:38:58,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:38:58,907 INFO L225 Difference]: With dead ends: 94 [2021-12-22 11:38:58,907 INFO L226 Difference]: Without dead ends: 90 [2021-12-22 11:38:58,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2021-12-22 11:38:58,908 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 94 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:38:58,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 66 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:38:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-22 11:38:58,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 84. [2021-12-22 11:38:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 55 states have internal predecessors, (65), 16 states have call successors, (16), 7 states have call predecessors, (16), 11 states have return successors, (43), 21 states have call predecessors, (43), 16 states have call successors, (43) [2021-12-22 11:38:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 124 transitions. [2021-12-22 11:38:58,919 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 124 transitions. Word has length 79 [2021-12-22 11:38:58,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:38:58,919 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 124 transitions. [2021-12-22 11:38:58,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-22 11:38:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 124 transitions. [2021-12-22 11:38:58,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-22 11:38:58,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:38:58,922 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 20, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:38:58,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 11:38:59,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:59,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:38:59,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:38:59,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1766942948, now seen corresponding path program 4 times [2021-12-22 11:38:59,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:38:59,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216582502] [2021-12-22 11:38:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:38:59,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:38:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:38:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:38:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:38:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:38:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:38:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:38:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:38:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:38:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:38:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:38:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:38:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 533 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-12-22 11:38:59,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:38:59,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216582502] [2021-12-22 11:38:59,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216582502] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:38:59,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864641969] [2021-12-22 11:38:59,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-22 11:38:59,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:38:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:38:59,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:38:59,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 11:38:59,548 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-22 11:38:59,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:38:59,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-22 11:38:59,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:38:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 533 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-12-22 11:38:59,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:39:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 573 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2021-12-22 11:39:01,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864641969] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:39:01,144 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:39:01,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 15] total 23 [2021-12-22 11:39:01,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837785411] [2021-12-22 11:39:01,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:39:01,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-22 11:39:01,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:39:01,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-22 11:39:01,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-12-22 11:39:01,146 INFO L87 Difference]: Start difference. First operand 84 states and 124 transitions. Second operand has 23 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 23 states have internal predecessors, (61), 20 states have call successors, (21), 1 states have call predecessors, (21), 7 states have return successors, (29), 12 states have call predecessors, (29), 20 states have call successors, (29) [2021-12-22 11:39:01,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:39:01,365 INFO L93 Difference]: Finished difference Result 208 states and 347 transitions. [2021-12-22 11:39:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 11:39:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 23 states have internal predecessors, (61), 20 states have call successors, (21), 1 states have call predecessors, (21), 7 states have return successors, (29), 12 states have call predecessors, (29), 20 states have call successors, (29) Word has length 174 [2021-12-22 11:39:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:39:01,378 INFO L225 Difference]: With dead ends: 208 [2021-12-22 11:39:01,378 INFO L226 Difference]: Without dead ends: 204 [2021-12-22 11:39:01,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-12-22 11:39:01,379 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 107 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 11:39:01,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 84 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 11:39:01,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-12-22 11:39:01,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 192. [2021-12-22 11:39:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.185483870967742) internal successors, (147), 123 states have internal predecessors, (147), 42 states have call successors, (42), 14 states have call predecessors, (42), 25 states have return successors, (137), 54 states have call predecessors, (137), 42 states have call successors, (137) [2021-12-22 11:39:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 326 transitions. [2021-12-22 11:39:01,412 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 326 transitions. Word has length 174 [2021-12-22 11:39:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:39:01,412 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 326 transitions. [2021-12-22 11:39:01,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 23 states have internal predecessors, (61), 20 states have call successors, (21), 1 states have call predecessors, (21), 7 states have return successors, (29), 12 states have call predecessors, (29), 20 states have call successors, (29) [2021-12-22 11:39:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 326 transitions. [2021-12-22 11:39:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-22 11:39:01,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:39:01,416 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:39:01,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 11:39:01,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:01,645 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:39:01,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:39:01,645 INFO L85 PathProgramCache]: Analyzing trace with hash -778425254, now seen corresponding path program 5 times [2021-12-22 11:39:01,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:39:01,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588081519] [2021-12-22 11:39:01,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:39:01,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:39:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:39:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 189 proven. 1130 refuted. 0 times theorem prover too weak. 3249 trivial. 0 not checked. [2021-12-22 11:39:02,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:39:02,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588081519] [2021-12-22 11:39:02,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588081519] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:39:02,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494114194] [2021-12-22 11:39:02,118 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-22 11:39:02,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:02,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:39:02,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:39:02,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 11:39:02,269 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 41 check-sat command(s) [2021-12-22 11:39:02,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:39:02,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-22 11:39:02,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:39:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 801 proven. 327 refuted. 0 times theorem prover too weak. 3440 trivial. 0 not checked. [2021-12-22 11:39:02,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:39:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 807 proven. 358 refuted. 0 times theorem prover too weak. 3403 trivial. 0 not checked. [2021-12-22 11:39:04,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494114194] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:39:04,017 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:39:04,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 15] total 26 [2021-12-22 11:39:04,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655909709] [2021-12-22 11:39:04,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:39:04,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-22 11:39:04,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:39:04,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-22 11:39:04,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=448, Unknown=0, NotChecked=0, Total=650 [2021-12-22 11:39:04,019 INFO L87 Difference]: Start difference. First operand 192 states and 326 transitions. Second operand has 26 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 26 states have internal predecessors, (65), 19 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (32), 17 states have call predecessors, (32), 19 states have call successors, (32) [2021-12-22 11:39:04,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:39:04,226 INFO L93 Difference]: Finished difference Result 298 states and 575 transitions. [2021-12-22 11:39:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 11:39:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 26 states have internal predecessors, (65), 19 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (32), 17 states have call predecessors, (32), 19 states have call successors, (32) Word has length 283 [2021-12-22 11:39:04,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:39:04,229 INFO L225 Difference]: With dead ends: 298 [2021-12-22 11:39:04,229 INFO L226 Difference]: Without dead ends: 103 [2021-12-22 11:39:04,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 632 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=506, Unknown=0, NotChecked=0, Total=756 [2021-12-22 11:39:04,234 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 128 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 11:39:04,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 106 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 11:39:04,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-22 11:39:04,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 74. [2021-12-22 11:39:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 50 states have internal predecessors, (62), 13 states have call successors, (13), 8 states have call predecessors, (13), 9 states have return successors, (43), 15 states have call predecessors, (43), 13 states have call successors, (43) [2021-12-22 11:39:04,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 118 transitions. [2021-12-22 11:39:04,249 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 118 transitions. Word has length 283 [2021-12-22 11:39:04,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:39:04,250 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 118 transitions. [2021-12-22 11:39:04,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 26 states have internal predecessors, (65), 19 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (32), 17 states have call predecessors, (32), 19 states have call successors, (32) [2021-12-22 11:39:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2021-12-22 11:39:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2021-12-22 11:39:04,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:39:04,257 INFO L514 BasicCegarLoop]: trace histogram [77, 77, 62, 38, 38, 38, 38, 38, 38, 38, 24, 15, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:39:04,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 11:39:04,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:04,471 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:39:04,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:39:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash -4939658, now seen corresponding path program 6 times [2021-12-22 11:39:04,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:39:04,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149767250] [2021-12-22 11:39:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:39:04,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:39:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:39:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:04,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:39:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 2818 proven. 2810 refuted. 0 times theorem prover too weak. 10779 trivial. 0 not checked. [2021-12-22 11:39:05,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:39:05,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149767250] [2021-12-22 11:39:05,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149767250] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:39:05,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226689103] [2021-12-22 11:39:05,498 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-22 11:39:05,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:05,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:39:05,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:39:05,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 11:39:05,626 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2021-12-22 11:39:05,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:39:05,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-22 11:39:05,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:39:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 533 proven. 2177 refuted. 0 times theorem prover too weak. 13697 trivial. 0 not checked. [2021-12-22 11:39:06,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:39:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 537 proven. 2230 refuted. 0 times theorem prover too weak. 13640 trivial. 0 not checked. [2021-12-22 11:39:08,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226689103] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:39:08,356 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:39:08,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 11, 17] total 36 [2021-12-22 11:39:08,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719429716] [2021-12-22 11:39:08,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:39:08,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-22 11:39:08,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:39:08,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-22 11:39:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 11:39:08,358 INFO L87 Difference]: Start difference. First operand 74 states and 118 transitions. Second operand has 36 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 36 states have internal predecessors, (88), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (47), 27 states have call predecessors, (47), 26 states have call successors, (47) [2021-12-22 11:39:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:39:08,897 INFO L93 Difference]: Finished difference Result 187 states and 406 transitions. [2021-12-22 11:39:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-22 11:39:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 36 states have internal predecessors, (88), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (47), 27 states have call predecessors, (47), 26 states have call successors, (47) Word has length 528 [2021-12-22 11:39:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:39:08,899 INFO L225 Difference]: With dead ends: 187 [2021-12-22 11:39:08,899 INFO L226 Difference]: Without dead ends: 119 [2021-12-22 11:39:08,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1266 GetRequests, 1207 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=831, Invalid=2591, Unknown=0, NotChecked=0, Total=3422 [2021-12-22 11:39:08,901 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 206 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:39:08,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 224 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:39:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-22 11:39:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 112. [2021-12-22 11:39:08,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 77 states have internal predecessors, (86), 22 states have call successors, (22), 16 states have call predecessors, (22), 10 states have return successors, (52), 18 states have call predecessors, (52), 22 states have call successors, (52) [2021-12-22 11:39:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 160 transitions. [2021-12-22 11:39:08,906 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 160 transitions. Word has length 528 [2021-12-22 11:39:08,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:39:08,907 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 160 transitions. [2021-12-22 11:39:08,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 36 states have internal predecessors, (88), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (47), 27 states have call predecessors, (47), 26 states have call successors, (47) [2021-12-22 11:39:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 160 transitions. [2021-12-22 11:39:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2021-12-22 11:39:08,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:39:08,941 INFO L514 BasicCegarLoop]: trace histogram [135, 135, 109, 67, 67, 67, 67, 67, 67, 67, 42, 26, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:39:08,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-22 11:39:09,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:09,158 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:39:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:39:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1077246303, now seen corresponding path program 7 times [2021-12-22 11:39:09,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:39:09,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242176940] [2021-12-22 11:39:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:39:09,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:39:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:39:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:39:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-22 11:39:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:39:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,120 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3273 proven. 6787 refuted. 0 times theorem prover too weak. 40850 trivial. 0 not checked. [2021-12-22 11:39:11,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:39:11,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242176940] [2021-12-22 11:39:11,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242176940] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:39:11,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034895419] [2021-12-22 11:39:11,121 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-22 11:39:11,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:11,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:39:11,122 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:39:11,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 11:39:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:11,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 2072 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-22 11:39:11,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:39:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3844 proven. 2510 refuted. 0 times theorem prover too weak. 44556 trivial. 0 not checked. [2021-12-22 11:39:12,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:39:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3844 proven. 2602 refuted. 0 times theorem prover too weak. 44464 trivial. 0 not checked. [2021-12-22 11:39:15,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034895419] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:39:15,978 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:39:15,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 13, 21] total 45 [2021-12-22 11:39:15,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996741511] [2021-12-22 11:39:15,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:39:15,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-12-22 11:39:15,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:39:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-12-22 11:39:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=459, Invalid=1521, Unknown=0, NotChecked=0, Total=1980 [2021-12-22 11:39:15,984 INFO L87 Difference]: Start difference. First operand 112 states and 160 transitions. Second operand has 45 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 45 states have internal predecessors, (107), 32 states have call successors, (37), 1 states have call predecessors, (37), 19 states have return successors, (57), 33 states have call predecessors, (57), 32 states have call successors, (57) [2021-12-22 11:39:16,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:39:16,540 INFO L93 Difference]: Finished difference Result 289 states and 614 transitions. [2021-12-22 11:39:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-12-22 11:39:16,540 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 45 states have internal predecessors, (107), 32 states have call successors, (37), 1 states have call predecessors, (37), 19 states have return successors, (57), 33 states have call predecessors, (57), 32 states have call successors, (57) Word has length 923 [2021-12-22 11:39:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:39:16,542 INFO L225 Difference]: With dead ends: 289 [2021-12-22 11:39:16,542 INFO L226 Difference]: Without dead ends: 160 [2021-12-22 11:39:16,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2177 GetRequests, 2101 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1246, Invalid=4454, Unknown=0, NotChecked=0, Total=5700 [2021-12-22 11:39:16,544 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 346 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:39:16,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 272 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:39:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-22 11:39:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2021-12-22 11:39:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 95 states have internal predecessors, (99), 28 states have call successors, (28), 22 states have call predecessors, (28), 10 states have return successors, (53), 18 states have call predecessors, (53), 28 states have call successors, (53) [2021-12-22 11:39:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 180 transitions. [2021-12-22 11:39:16,553 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 180 transitions. Word has length 923 [2021-12-22 11:39:16,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:39:16,554 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 180 transitions. [2021-12-22 11:39:16,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 45 states have internal predecessors, (107), 32 states have call successors, (37), 1 states have call predecessors, (37), 19 states have return successors, (57), 33 states have call predecessors, (57), 32 states have call successors, (57) [2021-12-22 11:39:16,554 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 180 transitions. [2021-12-22 11:39:16,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2021-12-22 11:39:16,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:39:16,571 INFO L514 BasicCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:39:16,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-22 11:39:16,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-22 11:39:16,788 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:39:16,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:39:16,789 INFO L85 PathProgramCache]: Analyzing trace with hash 597528604, now seen corresponding path program 8 times [2021-12-22 11:39:16,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:39:16,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501962375] [2021-12-22 11:39:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:39:16,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:39:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:39:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:39:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-22 11:39:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-12-22 11:39:18,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:39:18,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501962375] [2021-12-22 11:39:18,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501962375] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:39:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045587294] [2021-12-22 11:39:18,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 11:39:18,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:18,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:39:18,925 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:39:18,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-22 11:39:19,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 11:39:19,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:39:19,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 439 conjunts are in the unsatisfiable core [2021-12-22 11:39:19,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:39:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-12-22 11:39:22,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:39:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-12-22 11:39:28,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045587294] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:39:28,544 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:39:28,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2021-12-22 11:39:28,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908348357] [2021-12-22 11:39:28,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:39:28,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-22 11:39:28,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:39:28,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-22 11:39:28,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 11:39:28,546 INFO L87 Difference]: Start difference. First operand 136 states and 180 transitions. Second operand has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2021-12-22 11:39:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:39:28,839 INFO L93 Difference]: Finished difference Result 149 states and 201 transitions. [2021-12-22 11:39:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-22 11:39:28,840 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 746 [2021-12-22 11:39:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:39:28,844 INFO L225 Difference]: With dead ends: 149 [2021-12-22 11:39:28,844 INFO L226 Difference]: Without dead ends: 145 [2021-12-22 11:39:28,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1929 GetRequests, 1837 SyntacticMatches, 58 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 11:39:28,845 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:39:28,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1024 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:39:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-12-22 11:39:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2021-12-22 11:39:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 102 states have (on average 1.0196078431372548) internal successors, (104), 100 states have internal predecessors, (104), 29 states have call successors, (29), 22 states have call predecessors, (29), 12 states have return successors, (60), 21 states have call predecessors, (60), 29 states have call successors, (60) [2021-12-22 11:39:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 193 transitions. [2021-12-22 11:39:28,853 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 193 transitions. Word has length 746 [2021-12-22 11:39:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:39:28,853 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 193 transitions. [2021-12-22 11:39:28,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2021-12-22 11:39:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 193 transitions. [2021-12-22 11:39:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2021-12-22 11:39:28,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:39:28,858 INFO L514 BasicCegarLoop]: trace histogram [135, 135, 109, 67, 67, 67, 67, 67, 67, 67, 42, 26, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:39:28,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-22 11:39:29,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:29,075 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:39:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:39:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -151858645, now seen corresponding path program 9 times [2021-12-22 11:39:29,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:39:29,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746327158] [2021-12-22 11:39:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:39:29,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:39:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:39:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:39:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-22 11:39:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2021-12-22 11:39:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:39:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:39:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:39:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:39:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:39:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:39:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:39:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:39:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3313 proven. 5871 refuted. 0 times theorem prover too weak. 41726 trivial. 0 not checked. [2021-12-22 11:39:30,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:39:30,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746327158] [2021-12-22 11:39:30,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746327158] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:39:30,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036057085] [2021-12-22 11:39:30,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 11:39:30,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:39:30,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:39:30,808 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:39:30,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-22 11:39:31,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2021-12-22 11:39:31,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:39:31,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-22 11:39:31,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:39:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 1209 proven. 5377 refuted. 0 times theorem prover too weak. 44324 trivial. 0 not checked. [2021-12-22 11:39:32,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:39:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 1201 proven. 5477 refuted. 0 times theorem prover too weak. 44232 trivial. 0 not checked. [2021-12-22 11:39:36,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036057085] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:39:36,838 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:39:36,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 14, 22] total 43 [2021-12-22 11:39:36,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871962348] [2021-12-22 11:39:36,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:39:36,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-12-22 11:39:36,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:39:36,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-12-22 11:39:36,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=1391, Unknown=0, NotChecked=0, Total=1806 [2021-12-22 11:39:36,857 INFO L87 Difference]: Start difference. First operand 144 states and 193 transitions. Second operand has 43 states, 42 states have (on average 2.4761904761904763) internal successors, (104), 43 states have internal predecessors, (104), 33 states have call successors, (37), 1 states have call predecessors, (37), 17 states have return successors, (56), 28 states have call predecessors, (56), 33 states have call successors, (56) [2021-12-22 11:39:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:39:37,329 INFO L93 Difference]: Finished difference Result 287 states and 400 transitions. [2021-12-22 11:39:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-22 11:39:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.4761904761904763) internal successors, (104), 43 states have internal predecessors, (104), 33 states have call successors, (37), 1 states have call predecessors, (37), 17 states have return successors, (56), 28 states have call predecessors, (56), 33 states have call successors, (56) Word has length 923 [2021-12-22 11:39:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:39:37,331 INFO L225 Difference]: With dead ends: 287 [2021-12-22 11:39:37,331 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 11:39:37,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2157 GetRequests, 2092 SyntacticMatches, 10 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=757, Invalid=2435, Unknown=0, NotChecked=0, Total=3192 [2021-12-22 11:39:37,333 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 244 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:39:37,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 223 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:39:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 11:39:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 11:39:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 11:39:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 11:39:37,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 923 [2021-12-22 11:39:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:39:37,334 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 11:39:37,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.4761904761904763) internal successors, (104), 43 states have internal predecessors, (104), 33 states have call successors, (37), 1 states have call predecessors, (37), 17 states have return successors, (56), 28 states have call predecessors, (56), 33 states have call successors, (56) [2021-12-22 11:39:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 11:39:37,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 11:39:37,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 11:39:37,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-22 11:39:37,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-22 11:39:37,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 11:39:38,207 INFO L858 garLoopResultBuilder]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2021-12-22 11:39:38,207 INFO L861 garLoopResultBuilder]: At program point fibonacciENTRY(lines 16 24) the Hoare annotation is: true [2021-12-22 11:39:38,207 INFO L854 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (and (= fibonacci_~n |fibonacci_#in~n|) (not (<= |fibonacci_#in~n| 1))) [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L854 garLoopResultBuilder]: At program point L22-2(line 22) the Hoare annotation is: (and (let ((.cse0 (<= 1 |fibonacci_#t~ret4|)) (.cse1 (<= |fibonacci_#t~ret4| 1))) (or (and (<= 5 |fibonacci_#t~ret4|) (<= 6 fibonacci_~n) (<= |fibonacci_#t~ret4| 5) (<= fibonacci_~n 6)) (and (<= fibonacci_~n 4) (<= 2 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 2) (<= 4 |fibonacci_#in~n|)) (and (<= 8 fibonacci_~n) (<= |fibonacci_#t~ret4| 13) (<= |fibonacci_#in~n| 8) (<= 13 |fibonacci_#t~ret4|)) (and (<= 7 fibonacci_~n) (<= 8 |fibonacci_#t~ret4|) (<= fibonacci_~n 7) (<= |fibonacci_#t~ret4| 8)) (and (not (<= fibonacci_~n 1)) .cse0 (<= |fibonacci_#in~n| 2) .cse1) (and .cse0 (<= 3 fibonacci_~n) .cse1 (<= |fibonacci_#in~n| 3)) (and (<= 3 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 3) (<= 5 fibonacci_~n) (<= |fibonacci_#in~n| 5)) (and (<= 21 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 21) (<= 9 |fibonacci_#in~n|)) (<= 10 |fibonacci_#in~n|))) (= fibonacci_~n |fibonacci_#in~n|)) [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 23) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 34) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L854 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= 9 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9)) [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 11:39:38,208 INFO L858 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-12-22 11:39:38,209 INFO L854 garLoopResultBuilder]: At program point L27(lines 27 35) the Hoare annotation is: (<= 9 |ULTIMATE.start_main_~x~0#1|) [2021-12-22 11:39:38,209 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2021-12-22 11:39:38,211 INFO L732 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2021-12-22 11:39:38,212 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 11:39:38,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:39:38 BoogieIcfgContainer [2021-12-22 11:39:38,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 11:39:38,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 11:39:38,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 11:39:38,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 11:39:38,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:38:55" (3/4) ... [2021-12-22 11:39:38,226 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 11:39:38,231 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2021-12-22 11:39:38,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-22 11:39:38,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-22 11:39:38,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 11:39:38,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 11:39:38,266 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 11:39:38,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 11:39:38,268 INFO L158 Benchmark]: Toolchain (without parser) took 43553.92ms. Allocated memory was 104.9MB in the beginning and 557.8MB in the end (delta: 453.0MB). Free memory was 80.8MB in the beginning and 348.7MB in the end (delta: -267.9MB). Peak memory consumption was 184.5MB. Max. memory is 16.1GB. [2021-12-22 11:39:38,269 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 11:39:38,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.40ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 80.9MB in the end (delta: -116.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 11:39:38,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.64ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 11:39:38,270 INFO L158 Benchmark]: Boogie Preprocessor took 13.91ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 78.8MB in the end (delta: 808.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 11:39:38,271 INFO L158 Benchmark]: RCFGBuilder took 268.63ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 70.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 11:39:38,271 INFO L158 Benchmark]: TraceAbstraction took 43016.70ms. Allocated memory was 104.9MB in the beginning and 557.8MB in the end (delta: 453.0MB). Free memory was 69.7MB in the beginning and 351.8MB in the end (delta: -282.1MB). Peak memory consumption was 173.8MB. Max. memory is 16.1GB. [2021-12-22 11:39:38,271 INFO L158 Benchmark]: Witness Printer took 42.58ms. Allocated memory is still 557.8MB. Free memory was 351.8MB in the beginning and 348.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 11:39:38,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.40ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 80.9MB in the end (delta: -116.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.64ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.91ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 78.8MB in the end (delta: 808.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 268.63ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 70.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 43016.70ms. Allocated memory was 104.9MB in the beginning and 557.8MB in the end (delta: 453.0MB). Free memory was 69.7MB in the beginning and 351.8MB in the end (delta: -282.1MB). Peak memory consumption was 173.8MB. Max. memory is 16.1GB. * Witness Printer took 42.58ms. Allocated memory is still 557.8MB. Free memory was 351.8MB in the beginning and 348.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.0s, OverallIterations: 12, TraceHistogramMax: 135, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1346 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1253 mSDsluCounter, 2285 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1990 mSDsCounter, 1775 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3816 IncrementalHoareTripleChecker+Invalid, 5591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1775 mSolverCounterUnsat, 295 mSDtfsCounter, 3816 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9030 GetRequests, 8611 SyntacticMatches, 81 SemanticMatches, 338 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5189 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=7, InterpolantAutomatonStates: 234, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 81 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 440 PreInvPairs, 649 NumberOfFragments, 129 HoareAnnotationTreeSize, 440 FomulaSimplifications, 1754 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3710 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 34.8s InterpolantComputationTime, 7501 NumberOfCodeBlocks, 6503 NumberOfCodeBlocksAsserted, 131 NumberOfCheckSat, 11209 ConstructedInterpolants, 0 QuantifiedInterpolants, 22254 SizeOfPredicates, 48 NumberOfNonLiveVariables, 6271 ConjunctsInSsa, 552 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 401455/473739 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 9 <= x RESULT: Ultimate proved your program to be correct! [2021-12-22 11:39:38,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE