./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-007.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 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 19:00:09,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 19:00:09,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 19:00:09,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 19:00:09,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 19:00:09,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 19:00:09,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 19:00:09,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 19:00:09,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 19:00:09,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 19:00:09,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 19:00:09,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 19:00:09,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 19:00:09,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 19:00:09,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 19:00:09,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 19:00:09,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 19:00:09,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 19:00:09,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 19:00:09,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 19:00:09,924 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 19:00:09,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 19:00:09,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 19:00:09,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 19:00:09,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 19:00:09,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 19:00:09,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 19:00:09,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 19:00:09,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 19:00:09,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 19:00:09,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 19:00:09,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 19:00:09,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 19:00:09,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 19:00:09,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 19:00:09,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 19:00:09,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 19:00:09,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 19:00:09,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 19:00:09,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 19:00:09,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 19:00:09,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 19:00:09,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 19:00:09,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 19:00:09,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 19:00:09,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 19:00:09,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 19:00:09,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 19:00:09,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 19:00:09,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 19:00:09,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 19:00:09,953 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 19:00:09,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 19:00:09,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 19:00:09,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 19:00:09,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 19:00:09,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 19:00:09,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 19:00:09,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 19:00:09,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 19:00:09,955 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 19:00:09,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 19:00:09,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 19:00:09,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 19:00:09,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 19:00:09,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 19:00:09,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 19:00:09,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 19:00:09,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 19:00:09,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 19:00:09,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 19:00:09,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 19:00:09,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 19:00:09,957 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 19:00:09,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 19:00:09,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 19:00:09,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2022-07-22 19:00:10,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 19:00:10,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 19:00:10,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 19:00:10,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 19:00:10,185 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 19:00:10,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-007.c [2022-07-22 19:00:10,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dced2662/506f0fec00ce435a95346c5c595342a0/FLAG800c39778 [2022-07-22 19:00:10,620 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 19:00:10,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-007.c [2022-07-22 19:00:10,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dced2662/506f0fec00ce435a95346c5c595342a0/FLAG800c39778 [2022-07-22 19:00:10,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dced2662/506f0fec00ce435a95346c5c595342a0 [2022-07-22 19:00:10,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 19:00:10,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 19:00:10,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 19:00:10,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 19:00:10,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 19:00:10,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:10,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1c915f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10, skipping insertion in model container [2022-07-22 19:00:10,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:10,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 19:00:10,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 19:00:10,884 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-007.c[3690,3703] [2022-07-22 19:00:10,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 19:00:10,908 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 19:00:10,942 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-007.c[3690,3703] [2022-07-22 19:00:10,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 19:00:10,958 INFO L208 MainTranslator]: Completed translation [2022-07-22 19:00:10,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10 WrapperNode [2022-07-22 19:00:10,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 19:00:10,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 19:00:10,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 19:00:10,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 19:00:10,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:10,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,003 INFO L137 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 174 [2022-07-22 19:00:11,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 19:00:11,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 19:00:11,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 19:00:11,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 19:00:11,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 19:00:11,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 19:00:11,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 19:00:11,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 19:00:11,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (1/1) ... [2022-07-22 19:00:11,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 19:00:11,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 19:00:11,058 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) [2022-07-22 19:00:11,071 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 [2022-07-22 19:00:11,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 19:00:11,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 19:00:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 19:00:11,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 19:00:11,086 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-22 19:00:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-22 19:00:11,131 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 19:00:11,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 19:00:11,392 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 19:00:11,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 19:00:11,398 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 19:00:11,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 07:00:11 BoogieIcfgContainer [2022-07-22 19:00:11,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 19:00:11,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 19:00:11,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 19:00:11,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 19:00:11,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 07:00:10" (1/3) ... [2022-07-22 19:00:11,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155ebaee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 07:00:11, skipping insertion in model container [2022-07-22 19:00:11,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:00:10" (2/3) ... [2022-07-22 19:00:11,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155ebaee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 07:00:11, skipping insertion in model container [2022-07-22 19:00:11,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 07:00:11" (3/3) ... [2022-07-22 19:00:11,415 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2022-07-22 19:00:11,426 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 19:00:11,426 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 19:00:11,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 19:00:11,489 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b205937, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@205c30f0 [2022-07-22 19:00:11,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 19:00:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-07-22 19:00:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-22 19:00:11,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:00:11,525 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:00:11,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:00:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:00:11,531 INFO L85 PathProgramCache]: Analyzing trace with hash -128819059, now seen corresponding path program 1 times [2022-07-22 19:00:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:00:11,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989754907] [2022-07-22 19:00:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:00:11,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:00:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 19:00:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 19:00:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 19:00:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 19:00:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 19:00:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 19:00:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 19:00:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 19:00:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 19:00:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 19:00:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 19:00:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 19:00:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 19:00:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 19:00:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 19:00:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 19:00:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 19:00:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 19:00:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 19:00:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 19:00:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 19:00:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 19:00:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-22 19:00:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-22 19:00:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-22 19:00:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-22 19:00:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-22 19:00:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 19:00:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-22 19:00:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 19:00:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-22 19:00:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-22 19:00:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:00:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-22 19:00:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-22 19:00:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-22 19:00:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-22 19:00:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-22 19:00:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-22 19:00:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-22 19:00:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-22 19:00:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-22 19:00:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-22 19:00:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-22 19:00:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-22 19:00:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-22 19:00:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-22 19:00:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-22 19:00:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-22 19:00:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-22 19:00:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-22 19:00:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-22 19:00:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-22 19:00:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-22 19:00:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-22 19:00:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-22 19:00:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-22 19:00:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-22 19:00:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-22 19:00:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-22 19:00:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-22 19:00:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-22 19:00:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-22 19:00:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-22 19:00:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-22 19:00:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-22 19:00:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-22 19:00:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-22 19:00:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-07-22 19:00:12,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:00:12,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989754907] [2022-07-22 19:00:12,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989754907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:00:12,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:00:12,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 19:00:12,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785033257] [2022-07-22 19:00:12,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:00:12,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 19:00:12,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:00:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 19:00:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 19:00:12,079 INFO L87 Difference]: Start difference. First operand has 110 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-22 19:00:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:00:12,127 INFO L93 Difference]: Finished difference Result 214 states and 428 transitions. [2022-07-22 19:00:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 19:00:12,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) Word has length 374 [2022-07-22 19:00:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:00:12,153 INFO L225 Difference]: With dead ends: 214 [2022-07-22 19:00:12,153 INFO L226 Difference]: Without dead ends: 107 [2022-07-22 19:00:12,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 19:00:12,159 INFO L413 NwaCegarLoop]: 179 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, 179 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 [2022-07-22 19:00:12,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 19:00:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-22 19:00:12,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-07-22 19:00:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-07-22 19:00:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 179 transitions. [2022-07-22 19:00:12,216 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 179 transitions. Word has length 374 [2022-07-22 19:00:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:00:12,218 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 179 transitions. [2022-07-22 19:00:12,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-22 19:00:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 179 transitions. [2022-07-22 19:00:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-22 19:00:12,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:00:12,227 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:00:12,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 19:00:12,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:00:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:00:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1137197631, now seen corresponding path program 1 times [2022-07-22 19:00:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:00:12,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20780643] [2022-07-22 19:00:12,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:00:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:00:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 19:00:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 19:00:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 19:00:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 19:00:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 19:00:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 19:00:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 19:00:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 19:00:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 19:00:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 19:00:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 19:00:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 19:00:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 19:00:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 19:00:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 19:00:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 19:00:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 19:00:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 19:00:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 19:00:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 19:00:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 19:00:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 19:00:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-22 19:00:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-22 19:00:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-22 19:00:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-22 19:00:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-22 19:00:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 19:00:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-22 19:00:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 19:00:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-22 19:00:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-22 19:00:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:00:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-22 19:00:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-22 19:00:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-22 19:00:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-22 19:00:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-22 19:00:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-22 19:00:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-22 19:00:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-22 19:00:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-22 19:00:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-22 19:00:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-22 19:00:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-22 19:00:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-22 19:00:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-22 19:00:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-22 19:00:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-22 19:00:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-22 19:00:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-22 19:00:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-22 19:00:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-22 19:00:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-22 19:00:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-22 19:00:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-22 19:00:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-22 19:00:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-22 19:00:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-22 19:00:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-22 19:00:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-22 19:00:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-22 19:00:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-22 19:00:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-22 19:00:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-22 19:00:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-22 19:00:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-22 19:00:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-22 19:00:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1119 proven. 897 refuted. 0 times theorem prover too weak. 7096 trivial. 0 not checked. [2022-07-22 19:00:16,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:00:16,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20780643] [2022-07-22 19:00:16,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20780643] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 19:00:16,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450017263] [2022-07-22 19:00:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:00:16,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 19:00:16,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 19:00:16,110 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) [2022-07-22 19:00:16,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 19:00:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:16,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 101 conjunts are in the unsatisfiable core [2022-07-22 19:00:16,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 19:00:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1771 proven. 723 refuted. 0 times theorem prover too weak. 6618 trivial. 0 not checked. [2022-07-22 19:00:19,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 19:00:22,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1503 proven. 765 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-07-22 19:00:22,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450017263] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 19:00:22,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 19:00:22,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 32] total 83 [2022-07-22 19:00:22,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116358641] [2022-07-22 19:00:22,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 19:00:22,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-07-22 19:00:22,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:00:22,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-07-22 19:00:22,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=6368, Unknown=0, NotChecked=0, Total=6806 [2022-07-22 19:00:22,155 INFO L87 Difference]: Start difference. First operand 107 states and 179 transitions. Second operand has 83 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 54 states have internal predecessors, (92), 44 states have call successors, (182), 2 states have call predecessors, (182), 3 states have return successors, (183), 39 states have call predecessors, (183), 44 states have call successors, (183) [2022-07-22 19:00:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:00:43,178 INFO L93 Difference]: Finished difference Result 206 states and 307 transitions. [2022-07-22 19:00:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-07-22 19:00:43,185 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 54 states have internal predecessors, (92), 44 states have call successors, (182), 2 states have call predecessors, (182), 3 states have return successors, (183), 39 states have call predecessors, (183), 44 states have call successors, (183) Word has length 374 [2022-07-22 19:00:43,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:00:43,196 INFO L225 Difference]: With dead ends: 206 [2022-07-22 19:00:43,196 INFO L226 Difference]: Without dead ends: 194 [2022-07-22 19:00:43,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2747 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=3274, Invalid=14816, Unknown=0, NotChecked=0, Total=18090 [2022-07-22 19:00:43,204 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 932 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 6951 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 8227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 6951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 179 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-22 19:00:43,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 1495 Invalid, 8227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 6951 Invalid, 0 Unknown, 179 Unchecked, 5.0s Time] [2022-07-22 19:00:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-22 19:00:43,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2022-07-22 19:00:43,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-07-22 19:00:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 202 transitions. [2022-07-22 19:00:43,253 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 202 transitions. Word has length 374 [2022-07-22 19:00:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:00:43,258 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 202 transitions. [2022-07-22 19:00:43,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 54 states have internal predecessors, (92), 44 states have call successors, (182), 2 states have call predecessors, (182), 3 states have return successors, (183), 39 states have call predecessors, (183), 44 states have call successors, (183) [2022-07-22 19:00:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 202 transitions. [2022-07-22 19:00:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-22 19:00:43,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:00:43,263 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:00:43,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 19:00:43,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 19:00:43,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:00:43,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:00:43,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2136701311, now seen corresponding path program 1 times [2022-07-22 19:00:43,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:00:43,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078814244] [2022-07-22 19:00:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:00:43,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:00:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 19:00:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 19:00:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 19:00:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 19:00:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 19:00:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 19:00:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 19:00:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 19:00:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 19:00:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 19:00:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 19:00:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 19:00:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 19:00:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 19:00:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 19:00:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 19:00:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 19:00:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 19:00:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 19:00:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 19:00:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 19:00:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 19:00:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-22 19:00:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-22 19:00:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-22 19:00:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-22 19:00:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-22 19:00:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 19:00:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-22 19:00:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 19:00:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-22 19:00:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-22 19:00:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:00:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-22 19:00:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-22 19:00:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-22 19:00:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-22 19:00:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-22 19:00:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-22 19:00:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-22 19:00:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-22 19:00:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-22 19:00:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-22 19:00:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-22 19:00:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-22 19:00:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-22 19:00:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-22 19:00:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-22 19:00:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-22 19:00:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-22 19:00:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-22 19:00:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-22 19:00:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-22 19:00:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-22 19:00:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-22 19:00:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-22 19:00:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-22 19:00:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-22 19:00:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-22 19:00:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-22 19:00:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-22 19:00:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-22 19:00:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-22 19:00:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-22 19:00:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-22 19:00:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-22 19:00:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-22 19:00:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-22 19:00:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 2148 proven. 957 refuted. 0 times theorem prover too weak. 6007 trivial. 0 not checked. [2022-07-22 19:00:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:00:53,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078814244] [2022-07-22 19:00:53,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078814244] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 19:00:53,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350631012] [2022-07-22 19:00:53,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:00:53,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 19:00:53,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 19:00:53,114 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) [2022-07-22 19:00:53,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 19:00:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:00:53,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 90 conjunts are in the unsatisfiable core [2022-07-22 19:00:53,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 19:00:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1956 proven. 756 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-07-22 19:00:56,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 19:01:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1428 proven. 840 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-07-22 19:01:00,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350631012] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 19:01:00,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 19:01:00,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 27, 29] total 93 [2022-07-22 19:01:00,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309742498] [2022-07-22 19:01:00,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 19:01:00,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-07-22 19:01:00,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:01:00,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-07-22 19:01:00,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=8084, Unknown=0, NotChecked=0, Total=8556 [2022-07-22 19:01:00,598 INFO L87 Difference]: Start difference. First operand 123 states and 202 transitions. Second operand has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 57 states have internal predecessors, (93), 55 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (188), 50 states have call predecessors, (188), 55 states have call successors, (188) [2022-07-22 19:01:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:01:52,981 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2022-07-22 19:01:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-07-22 19:01:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 57 states have internal predecessors, (93), 55 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (188), 50 states have call predecessors, (188), 55 states have call successors, (188) Word has length 374 [2022-07-22 19:01:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:01:52,984 INFO L225 Difference]: With dead ends: 197 [2022-07-22 19:01:52,984 INFO L226 Difference]: Without dead ends: 181 [2022-07-22 19:01:52,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 861 SyntacticMatches, 1 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3633 ImplicationChecksByTransitivity, 52.6s TimeCoverageRelationStatistics Valid=4359, Invalid=18897, Unknown=0, NotChecked=0, Total=23256 [2022-07-22 19:01:52,989 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 808 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 9080 mSolverCounterSat, 1163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 10243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1163 IncrementalHoareTripleChecker+Valid, 9080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-22 19:01:52,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1799 Invalid, 10243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1163 Valid, 9080 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-07-22 19:01:52,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-22 19:01:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 119. [2022-07-22 19:01:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-22 19:01:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 196 transitions. [2022-07-22 19:01:53,029 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 196 transitions. Word has length 374 [2022-07-22 19:01:53,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:01:53,029 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 196 transitions. [2022-07-22 19:01:53,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 57 states have internal predecessors, (93), 55 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (188), 50 states have call predecessors, (188), 55 states have call successors, (188) [2022-07-22 19:01:53,030 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 196 transitions. [2022-07-22 19:01:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-22 19:01:53,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:01:53,036 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:01:53,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 19:01:53,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 19:01:53,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:01:53,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:01:53,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1271211137, now seen corresponding path program 1 times [2022-07-22 19:01:53,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:01:53,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592136680] [2022-07-22 19:01:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:01:53,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:01:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat