./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-006.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/xcsp/AllInterval-006.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 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:41:43,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:41:43,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:41:43,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:41:43,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:41:43,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:41:43,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:41:43,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:41:43,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:41:43,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:41:43,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:41:43,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:41:43,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:41:43,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:41:43,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:41:43,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:41:43,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:41:43,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:41:43,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:41:43,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:41:43,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:41:43,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:41:43,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:41:43,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:41:43,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:41:43,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:41:43,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:41:43,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:41:43,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:41:43,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:41:43,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:41:43,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:41:43,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:41:43,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:41:43,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:41:43,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:41:43,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:41:43,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:41:43,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:41:43,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:41:43,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:41:43,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:41:44,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:41:44,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:41:44,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:41:44,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:41:44,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:41:44,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:41:44,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:41:44,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:41:44,005 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:41:44,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:41:44,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:41:44,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:41:44,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:41:44,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:41:44,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:41:44,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:41:44,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:41:44,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:41:44,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:41:44,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:41:44,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:41:44,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:41:44,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:41:44,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:41:44,009 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:41:44,009 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:41:44,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:41:44,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:41:44,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2021-12-16 01:41:44,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:41:44,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:41:44,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:41:44,244 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:41:44,245 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:41:44,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-006.c [2021-12-16 01:41:44,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d7b6202/b6fce7973fdf44c3ae85826cf4d7b558/FLAG61990c2fb [2021-12-16 01:41:44,664 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:41:44,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c [2021-12-16 01:41:44,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d7b6202/b6fce7973fdf44c3ae85826cf4d7b558/FLAG61990c2fb [2021-12-16 01:41:44,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d7b6202/b6fce7973fdf44c3ae85826cf4d7b558 [2021-12-16 01:41:44,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:41:44,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:41:44,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:41:44,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:41:44,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:41:44,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4177d3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44, skipping insertion in model container [2021-12-16 01:41:44,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:41:44,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:41:44,880 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/xcsp/AllInterval-006.c[3098,3111] [2021-12-16 01:41:44,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:41:44,897 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:41:44,911 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/xcsp/AllInterval-006.c[3098,3111] [2021-12-16 01:41:44,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:41:44,919 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:41:44,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44 WrapperNode [2021-12-16 01:41:44,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:41:44,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:41:44,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:41:44,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:41:44,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,960 INFO L137 Inliner]: procedures = 13, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2021-12-16 01:41:44,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:41:44,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:41:44,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:41:44,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:41:44,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:44,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:41:44,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:41:44,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:41:44,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:41:44,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (1/1) ... [2021-12-16 01:41:45,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:41:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:41:45,023 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) [2021-12-16 01:41:45,053 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 [2021-12-16 01:41:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:41:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:41:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:41:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:41:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-16 01:41:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-16 01:41:45,118 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:41:45,119 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:41:45,263 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:41:45,274 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:41:45,282 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 01:41:45,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:41:45 BoogieIcfgContainer [2021-12-16 01:41:45,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:41:45,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:41:45,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:41:45,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:41:45,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:41:44" (1/3) ... [2021-12-16 01:41:45,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e33ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:41:45, skipping insertion in model container [2021-12-16 01:41:45,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:41:44" (2/3) ... [2021-12-16 01:41:45,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e33ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:41:45, skipping insertion in model container [2021-12-16 01:41:45,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:41:45" (3/3) ... [2021-12-16 01:41:45,289 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2021-12-16 01:41:45,292 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:41:45,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:41:45,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:41:45,374 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 [2021-12-16 01:41:45,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:41:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-16 01:41:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-16 01:41:45,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:41:45,407 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:41:45,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:41:45,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:41:45,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1899664910, now seen corresponding path program 1 times [2021-12-16 01:41:45,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:41:45,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204179913] [2021-12-16 01:41:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:41:45,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:41:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:41:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:41:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 01:41:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:41:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 01:41:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 01:41:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-16 01:41:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 01:41:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 01:41:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 01:41:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 01:41:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 01:41:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 01:41:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 01:41:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 01:41:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 01:41:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 01:41:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 01:41:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 01:41:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 01:41:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 01:41:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 01:41:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 01:41:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 01:41:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 01:41:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 01:41:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 01:41:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 01:41:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-16 01:41:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-16 01:41:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-16 01:41:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 01:41:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-16 01:41:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 01:41:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-16 01:41:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-16 01:41:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-16 01:41:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 01:41:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-16 01:41:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-16 01:41:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 01:41:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 01:41:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-16 01:41:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 01:41:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-16 01:41:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-16 01:41:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-16 01:41:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-16 01:41:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-16 01:41:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 01:41:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:46,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-16 01:41:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 01:41:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2021-12-16 01:41:46,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:41:46,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204179913] [2021-12-16 01:41:46,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204179913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:41:46,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:41:46,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:41:46,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924588520] [2021-12-16 01:41:46,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:41:46,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:41:46,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:41:46,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:41:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:41:46,039 INFO L87 Difference]: Start difference. First operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2021-12-16 01:41:46,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:41:46,063 INFO L93 Difference]: Finished difference Result 172 states and 336 transitions. [2021-12-16 01:41:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:41:46,065 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 289 [2021-12-16 01:41:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:41:46,073 INFO L225 Difference]: With dead ends: 172 [2021-12-16 01:41:46,073 INFO L226 Difference]: Without dead ends: 86 [2021-12-16 01:41:46,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:41:46,078 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:41:46,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:41:46,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-16 01:41:46,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-12-16 01:41:46,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-16 01:41:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 141 transitions. [2021-12-16 01:41:46,112 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 141 transitions. Word has length 289 [2021-12-16 01:41:46,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:41:46,112 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 141 transitions. [2021-12-16 01:41:46,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2021-12-16 01:41:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 141 transitions. [2021-12-16 01:41:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-16 01:41:46,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:41:46,117 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:41:46,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:41:46,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:41:46,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:41:46,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1263147558, now seen corresponding path program 1 times [2021-12-16 01:41:46,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:41:46,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809819538] [2021-12-16 01:41:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:41:46,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:41:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:41:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:41:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 01:41:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:41:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 01:41:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 01:41:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-16 01:41:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 01:41:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 01:41:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 01:41:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 01:41:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 01:41:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 01:41:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 01:41:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 01:41:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 01:41:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 01:41:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 01:41:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 01:41:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 01:41:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 01:41:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 01:41:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 01:41:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 01:41:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 01:41:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 01:41:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 01:41:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 01:41:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-16 01:41:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-16 01:41:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-16 01:41:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 01:41:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-16 01:41:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 01:41:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-16 01:41:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-16 01:41:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-16 01:41:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 01:41:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-16 01:41:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-16 01:41:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 01:41:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 01:41:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-16 01:41:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 01:41:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-16 01:41:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-16 01:41:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-16 01:41:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-16 01:41:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-16 01:41:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 01:41:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-16 01:41:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 01:41:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1059 proven. 462 refuted. 0 times theorem prover too weak. 3783 trivial. 0 not checked. [2021-12-16 01:41:48,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:41:48,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809819538] [2021-12-16 01:41:48,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809819538] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:41:48,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237522075] [2021-12-16 01:41:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:41:48,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:41:48,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:41:48,624 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) [2021-12-16 01:41:48,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 01:41:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:41:48,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 94 conjunts are in the unsatisfiable core [2021-12-16 01:41:48,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:41:51,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1113 proven. 483 refuted. 0 times theorem prover too weak. 3708 trivial. 0 not checked. [2021-12-16 01:41:51,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 01:41:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1128 proven. 393 refuted. 0 times theorem prover too weak. 3783 trivial. 0 not checked. [2021-12-16 01:41:55,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237522075] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 01:41:55,811 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 01:41:55,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 28, 29] total 83 [2021-12-16 01:41:55,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487438285] [2021-12-16 01:41:55,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 01:41:55,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-12-16 01:41:55,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:41:55,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-12-16 01:41:55,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=6380, Unknown=0, NotChecked=0, Total=6806 [2021-12-16 01:41:55,817 INFO L87 Difference]: Start difference. First operand 86 states and 141 transitions. Second operand has 83 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 57 states have internal predecessors, (85), 47 states have call successors, (145), 1 states have call predecessors, (145), 2 states have return successors, (147), 44 states have call predecessors, (147), 47 states have call successors, (147) [2021-12-16 01:42:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:42:15,280 INFO L93 Difference]: Finished difference Result 203 states and 290 transitions. [2021-12-16 01:42:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-12-16 01:42:15,281 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 57 states have internal predecessors, (85), 47 states have call successors, (145), 1 states have call predecessors, (145), 2 states have return successors, (147), 44 states have call predecessors, (147), 47 states have call successors, (147) Word has length 289 [2021-12-16 01:42:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:42:15,284 INFO L225 Difference]: With dead ends: 203 [2021-12-16 01:42:15,284 INFO L226 Difference]: Without dead ends: 193 [2021-12-16 01:42:15,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 617 SyntacticMatches, 28 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5832 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=6078, Invalid=23334, Unknown=0, NotChecked=0, Total=29412 [2021-12-16 01:42:15,292 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 627 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 4829 mSolverCounterSat, 1232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 6061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1232 IncrementalHoareTripleChecker+Valid, 4829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:42:15,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 3790 Invalid, 6061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1232 Valid, 4829 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-16 01:42:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-12-16 01:42:15,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 98. [2021-12-16 01:42:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-12-16 01:42:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 158 transitions. [2021-12-16 01:42:15,332 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 158 transitions. Word has length 289 [2021-12-16 01:42:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:42:15,334 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 158 transitions. [2021-12-16 01:42:15,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 57 states have internal predecessors, (85), 47 states have call successors, (145), 1 states have call predecessors, (145), 2 states have return successors, (147), 44 states have call predecessors, (147), 47 states have call successors, (147) [2021-12-16 01:42:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 158 transitions. [2021-12-16 01:42:15,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-16 01:42:15,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:42:15,338 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:42:15,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 01:42:15,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:42:15,539 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:42:15,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:42:15,540 INFO L85 PathProgramCache]: Analyzing trace with hash 453800932, now seen corresponding path program 1 times [2021-12-16 01:42:15,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:42:15,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946571409] [2021-12-16 01:42:15,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:42:15,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:42:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:42:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:42:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 01:42:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:42:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 01:42:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 01:42:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-16 01:42:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 01:42:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 01:42:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 01:42:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 01:42:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 01:42:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 01:42:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 01:42:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 01:42:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 01:42:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 01:42:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 01:42:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 01:42:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 01:42:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 01:42:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 01:42:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 01:42:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 01:42:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 01:42:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 01:42:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 01:42:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 01:42:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-16 01:42:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-16 01:42:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-16 01:42:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-16 01:42:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-16 01:42:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 01:42:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-16 01:42:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-16 01:42:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-16 01:42:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 01:42:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-16 01:42:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-16 01:42:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-16 01:42:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-16 01:42:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-16 01:42:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 01:42:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-16 01:42:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-16 01:42:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-16 01:42:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-16 01:42:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-16 01:42:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 01:42:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-16 01:42:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 01:42:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 912 proven. 609 refuted. 0 times theorem prover too weak. 3783 trivial. 0 not checked. [2021-12-16 01:42:16,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:42:16,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946571409] [2021-12-16 01:42:16,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946571409] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:42:16,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153271660] [2021-12-16 01:42:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:42:16,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:42:16,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:42:16,852 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) [2021-12-16 01:42:16,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 01:42:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:42:16,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 80 conjunts are in the unsatisfiable core [2021-12-16 01:42:16,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:42:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1113 proven. 495 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2021-12-16 01:42:18,901 INFO L328 TraceCheckSpWp]: Computing backward predicates...