./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 6c24879c 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-?-6c24879 [2022-07-12 07:43:35,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:43:35,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:43:35,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:43:35,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:43:35,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:43:35,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:43:35,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:43:35,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:43:35,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:43:35,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:43:35,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:43:35,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:43:35,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:43:35,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:43:35,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:43:35,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:43:35,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:43:35,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:43:35,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:43:35,902 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:43:35,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:43:35,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:43:35,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:43:35,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:43:35,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:43:35,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:43:35,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:43:35,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:43:35,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:43:35,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:43:35,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:43:35,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:43:35,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:43:35,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:43:35,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:43:35,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:43:35,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:43:35,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:43:35,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:43:35,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:43:35,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:43:35,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:43:35,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:43:35,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:43:35,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:43:35,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:43:35,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:43:35,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:43:35,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:43:35,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:43:35,948 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:43:35,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:43:35,949 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:43:35,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:43:35,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:43:35,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:43:35,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:43:35,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:43:35,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:43:35,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:43:35,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:43:35,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:43:35,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:43:35,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:43:35,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:43:35,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:43:35,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:43:35,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:43:35,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:43:35,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:43:35,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:43:35,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:43:35,952 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:43:35,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:43:35,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:43:35,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2022-07-12 07:43:36,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:43:36,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:43:36,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:43:36,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:43:36,205 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:43:36,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-007.c [2022-07-12 07:43:36,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f82e4ec3/4894a7c239e84df0b2acf39bd1fe7312/FLAG52c315f42 [2022-07-12 07:43:36,590 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:43:36,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-007.c [2022-07-12 07:43:36,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f82e4ec3/4894a7c239e84df0b2acf39bd1fe7312/FLAG52c315f42 [2022-07-12 07:43:37,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f82e4ec3/4894a7c239e84df0b2acf39bd1fe7312 [2022-07-12 07:43:37,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:43:37,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:43:37,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:43:37,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:43:37,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:43:37,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666ad61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37, skipping insertion in model container [2022-07-12 07:43:37,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:43:37,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:43:37,203 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] [2022-07-12 07:43:37,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:43:37,212 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:43:37,232 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] [2022-07-12 07:43:37,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:43:37,241 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:43:37,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37 WrapperNode [2022-07-12 07:43:37,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:43:37,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:43:37,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:43:37,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:43:37,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,294 INFO L137 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 174 [2022-07-12 07:43:37,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:43:37,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:43:37,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:43:37,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:43:37,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:43:37,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:43:37,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:43:37,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:43:37,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (1/1) ... [2022-07-12 07:43:37,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:43:37,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:43:37,372 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) [2022-07-12 07:43:37,390 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 [2022-07-12 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:43:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:43:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-12 07:43:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-12 07:43:37,446 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:43:37,447 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:43:37,616 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:43:37,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:43:37,627 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:43:37,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:43:37 BoogieIcfgContainer [2022-07-12 07:43:37,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:43:37,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:43:37,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:43:37,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:43:37,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:43:37" (1/3) ... [2022-07-12 07:43:37,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2361683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:43:37, skipping insertion in model container [2022-07-12 07:43:37,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:37" (2/3) ... [2022-07-12 07:43:37,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2361683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:43:37, skipping insertion in model container [2022-07-12 07:43:37,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:43:37" (3/3) ... [2022-07-12 07:43:37,660 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2022-07-12 07:43:37,673 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:43:37,673 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 07:43:37,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:43:37,722 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@44cc5a4f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60eff45a [2022-07-12 07:43:37,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 07:43:37,726 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) [2022-07-12 07:43:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-12 07:43:37,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:43:37,751 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] [2022-07-12 07:43:37,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:43:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:43:37,755 INFO L85 PathProgramCache]: Analyzing trace with hash -128819059, now seen corresponding path program 1 times [2022-07-12 07:43:37,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:43:37,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289668382] [2022-07-12 07:43:37,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:43:37,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:43:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:43:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:43:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:43:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:43:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:43:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:43:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:43:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:43:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:43:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:43:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:43:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:43:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:43:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:43:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:43:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:43:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:43:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:43:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:43:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:43:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:43:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:43:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:43:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:43:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 07:43:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:43:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 07:43:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 07:43:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 07:43:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 07:43:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 07:43:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 07:43:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 07:43:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 07:43:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 07:43:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-12 07:43:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 07:43:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-12 07:43:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 07:43:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 07:43:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 07:43:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 07:43:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 07:43:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-12 07:43:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 07:43:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 07:43:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 07:43:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 07:43:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 07:43:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 07:43:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 07:43:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 07:43:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:43:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 07:43:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-12 07:43:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 07:43:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 07:43:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-12 07:43:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 07:43:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-12 07:43:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 07:43:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 07:43:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-12 07:43:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 07:43:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 07:43:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 07:43:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-12 07:43:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-12 07:43:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-07-12 07:43:38,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:43:38,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289668382] [2022-07-12 07:43:38,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289668382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:43:38,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:43:38,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 07:43:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356638100] [2022-07-12 07:43:38,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:43:38,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 07:43:38,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:43:38,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 07:43:38,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:43:38,358 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) [2022-07-12 07:43:38,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:43:38,404 INFO L93 Difference]: Finished difference Result 214 states and 428 transitions. [2022-07-12 07:43:38,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 07:43:38,406 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 [2022-07-12 07:43:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:43:38,412 INFO L225 Difference]: With dead ends: 214 [2022-07-12 07:43:38,417 INFO L226 Difference]: Without dead ends: 107 [2022-07-12 07:43:38,423 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 [2022-07-12 07:43:38,425 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 [2022-07-12 07:43:38,426 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] [2022-07-12 07:43:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-12 07:43:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-07-12 07:43:38,486 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) [2022-07-12 07:43:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 179 transitions. [2022-07-12 07:43:38,495 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 179 transitions. Word has length 374 [2022-07-12 07:43:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:43:38,496 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 179 transitions. [2022-07-12 07:43:38,497 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) [2022-07-12 07:43:38,497 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 179 transitions. [2022-07-12 07:43:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-12 07:43:38,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:43:38,509 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] [2022-07-12 07:43:38,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:43:38,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:43:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:43:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1137197631, now seen corresponding path program 1 times [2022-07-12 07:43:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:43:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098216766] [2022-07-12 07:43:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:43:38,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:43:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:43:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:43:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:43:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:43:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:43:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:43:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:43:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:43:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:43:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:43:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:43:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:43:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:43:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:43:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:43:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:43:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:43:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:43:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:43:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:43:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:43:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:43:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:43:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:43:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 07:43:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:43:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 07:43:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 07:43:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 07:43:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 07:43:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 07:43:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 07:43:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 07:43:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 07:43:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 07:43:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-12 07:43:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 07:43:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-12 07:43:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 07:43:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 07:43:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 07:43:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 07:43:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 07:43:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-12 07:43:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 07:43:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 07:43:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 07:43:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 07:43:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 07:43:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 07:43:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 07:43:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 07:43:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:43:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 07:43:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-12 07:43:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 07:43:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 07:43:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-12 07:43:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 07:43:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-12 07:43:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 07:43:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 07:43:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-12 07:43:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 07:43:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 07:43:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 07:43:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-12 07:43:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-12 07:43:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1119 proven. 897 refuted. 0 times theorem prover too weak. 7096 trivial. 0 not checked. [2022-07-12 07:43:42,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:43:42,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098216766] [2022-07-12 07:43:42,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098216766] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:43:42,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204573913] [2022-07-12 07:43:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:43:42,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:43:42,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:43:42,350 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) [2022-07-12 07:43:42,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 07:43:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:42,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 101 conjunts are in the unsatisfiable core [2022-07-12 07:43:42,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:43:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1771 proven. 723 refuted. 0 times theorem prover too weak. 6618 trivial. 0 not checked. [2022-07-12 07:43:45,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:43:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1503 proven. 765 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-07-12 07:43:48,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204573913] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:43:48,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:43:48,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 32] total 83 [2022-07-12 07:43:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135264009] [2022-07-12 07:43:48,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:43:48,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-07-12 07:43:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:43:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-07-12 07:43:48,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=6368, Unknown=0, NotChecked=0, Total=6806 [2022-07-12 07:43:48,551 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) [2022-07-12 07:44:10,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:44:10,867 INFO L93 Difference]: Finished difference Result 206 states and 307 transitions. [2022-07-12 07:44:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-07-12 07:44:10,868 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 [2022-07-12 07:44:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:44:10,872 INFO L225 Difference]: With dead ends: 206 [2022-07-12 07:44:10,872 INFO L226 Difference]: Without dead ends: 194 [2022-07-12 07:44:10,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2747 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=3274, Invalid=14816, Unknown=0, NotChecked=0, Total=18090 [2022-07-12 07:44:10,877 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 932 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 6951 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s 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, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:44:10,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 1495 Invalid, 8227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 6951 Invalid, 0 Unknown, 179 Unchecked, 5.4s Time] [2022-07-12 07:44:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-12 07:44:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2022-07-12 07:44:10,906 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) [2022-07-12 07:44:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 202 transitions. [2022-07-12 07:44:10,907 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 202 transitions. Word has length 374 [2022-07-12 07:44:10,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:44:10,908 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 202 transitions. [2022-07-12 07:44:10,909 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) [2022-07-12 07:44:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 202 transitions. [2022-07-12 07:44:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-12 07:44:10,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:44:10,914 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] [2022-07-12 07:44:10,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 07:44:11,136 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 [2022-07-12 07:44:11,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:44:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:44:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2136701311, now seen corresponding path program 1 times [2022-07-12 07:44:11,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:44:11,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031240138] [2022-07-12 07:44:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:44:11,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:44:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:44:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:44:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:44:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:44:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:44:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:44:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:44:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:44:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:44:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:44:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:44:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:44:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:44:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:44:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:44:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:44:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:44:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:44:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:44:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:44:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:44:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:44:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:44:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:44:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 07:44:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:44:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 07:44:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 07:44:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 07:44:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 07:44:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 07:44:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 07:44:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 07:44:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 07:44:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 07:44:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-12 07:44:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 07:44:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-12 07:44:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 07:44:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 07:44:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 07:44:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 07:44:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 07:44:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-12 07:44:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 07:44:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 07:44:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 07:44:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 07:44:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 07:44:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 07:44:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 07:44:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 07:44:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:44:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 07:44:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-12 07:44:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 07:44:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 07:44:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-12 07:44:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 07:44:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-12 07:44:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 07:44:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 07:44:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-12 07:44:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 07:44:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 07:44:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 07:44:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-12 07:44:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-12 07:44:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 2148 proven. 957 refuted. 0 times theorem prover too weak. 6007 trivial. 0 not checked. [2022-07-12 07:44:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:44:20,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031240138] [2022-07-12 07:44:20,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031240138] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:44:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560148410] [2022-07-12 07:44:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:44:20,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:44:20,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:44:20,797 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) [2022-07-12 07:44:20,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 07:44:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:44:20,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 90 conjunts are in the unsatisfiable core [2022-07-12 07:44:20,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:44:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1956 proven. 756 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-07-12 07:44:23,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:44:28,409 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1428 proven. 840 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-07-12 07:44:28,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560148410] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:44:28,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:44:28,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 27, 29] total 93 [2022-07-12 07:44:28,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487504469] [2022-07-12 07:44:28,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:44:28,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-07-12 07:44:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:44:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-07-12 07:44:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=8084, Unknown=0, NotChecked=0, Total=8556 [2022-07-12 07:44:28,414 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) [2022-07-12 07:45:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:45:21,416 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2022-07-12 07:45:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-07-12 07:45:21,417 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 [2022-07-12 07:45:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:45:21,420 INFO L225 Difference]: With dead ends: 197 [2022-07-12 07:45:21,420 INFO L226 Difference]: Without dead ends: 181 [2022-07-12 07:45:21,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 861 SyntacticMatches, 1 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3633 ImplicationChecksByTransitivity, 53.3s TimeCoverageRelationStatistics Valid=4359, Invalid=18897, Unknown=0, NotChecked=0, Total=23256 [2022-07-12 07:45:21,425 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 808 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 9080 mSolverCounterSat, 1163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s 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, 7.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:45:21,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1799 Invalid, 10243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1163 Valid, 9080 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-12 07:45:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-12 07:45:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 119. [2022-07-12 07:45:21,467 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) [2022-07-12 07:45:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 196 transitions. [2022-07-12 07:45:21,472 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 196 transitions. Word has length 374 [2022-07-12 07:45:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:45:21,477 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 196 transitions. [2022-07-12 07:45:21,478 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) [2022-07-12 07:45:21,478 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 196 transitions. [2022-07-12 07:45:21,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-12 07:45:21,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:45:21,486 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] [2022-07-12 07:45:21,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 07:45:21,700 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 [2022-07-12 07:45:21,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:45:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:45:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1271211137, now seen corresponding path program 1 times [2022-07-12 07:45:21,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:45:21,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809514051] [2022-07-12 07:45:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:45:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:45:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat