./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem10_label04.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 b7b6f186ede66b25b51c633a55bb25e291eb69596590009e014f685be0bc2be5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 12:17:15,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:17:15,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:17:15,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:17:15,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:17:15,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:17:15,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:17:15,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:17:15,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:17:15,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:17:15,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:17:15,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:17:15,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:17:15,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:17:15,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:17:15,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:17:15,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:17:15,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:17:15,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:17:15,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:17:15,917 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:17:15,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:17:15,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:17:15,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:17:15,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:17:15,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:17:15,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:17:15,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:17:15,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:17:15,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:17:15,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:17:15,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:17:15,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:17:15,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:17:15,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:17:15,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:17:15,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:17:15,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:17:15,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:17:15,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:17:15,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:17:15,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:17:15,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 12:17:15,985 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:17:15,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:17:15,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:17:15,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:17:15,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 12:17:15,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 12:17:15,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:17:15,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:17:15,988 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:17:15,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:17:15,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:17:15,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:17:15,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:17:15,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 12:17:15,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:17:15,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:17:15,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 12:17:15,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:17:15,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:17:15,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 12:17:15,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 12:17:15,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:17:16,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 12:17:16,003 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 12:17:16,003 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 12:17:16,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 12:17:16,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b6f186ede66b25b51c633a55bb25e291eb69596590009e014f685be0bc2be5 [2022-07-22 12:17:16,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:17:16,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:17:16,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:17:16,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:17:16,404 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:17:16,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label04.c [2022-07-22 12:17:16,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937b1ee9c/eb60a243496e4bddb4cdd3e147b7447f/FLAG847eda54e [2022-07-22 12:17:17,187 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:17:17,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label04.c [2022-07-22 12:17:17,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937b1ee9c/eb60a243496e4bddb4cdd3e147b7447f/FLAG847eda54e [2022-07-22 12:17:17,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937b1ee9c/eb60a243496e4bddb4cdd3e147b7447f [2022-07-22 12:17:17,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:17:17,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 12:17:17,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:17:17,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:17:17,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:17:17,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:17:17" (1/1) ... [2022-07-22 12:17:17,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c9baf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:17, skipping insertion in model container [2022-07-22 12:17:17,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:17:17" (1/1) ... [2022-07-22 12:17:17,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:17:17,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:17:17,898 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/eca-rers2012/Problem10_label04.c[7502,7515] [2022-07-22 12:17:18,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:17:18,108 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:17:18,175 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/eca-rers2012/Problem10_label04.c[7502,7515] [2022-07-22 12:17:18,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:17:18,276 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:17:18,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18 WrapperNode [2022-07-22 12:17:18,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:17:18,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:17:18,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:17:18,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:17:18,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,330 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2022-07-22 12:17:18,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:17:18,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:17:18,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:17:18,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:17:18,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:17:18,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:17:18,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:17:18,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:17:18,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (1/1) ... [2022-07-22 12:17:18,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:17:18,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:17:18,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 12:17:18,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 12:17:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:17:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:17:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:17:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:17:18,694 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:17:18,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:17:19,966 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:17:19,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:17:19,977 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 12:17:19,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:17:19 BoogieIcfgContainer [2022-07-22 12:17:19,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:17:19,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 12:17:19,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 12:17:19,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 12:17:19,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:17:17" (1/3) ... [2022-07-22 12:17:20,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4882779c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:17:20, skipping insertion in model container [2022-07-22 12:17:20,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:17:18" (2/3) ... [2022-07-22 12:17:20,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4882779c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:17:20, skipping insertion in model container [2022-07-22 12:17:20,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:17:19" (3/3) ... [2022-07-22 12:17:20,002 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label04.c [2022-07-22 12:17:20,012 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 12:17:20,012 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 12:17:20,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 12:17:20,121 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@aa84168, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@46a90e3d [2022-07-22 12:17:20,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 12:17:20,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 12:17:20,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:20,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:20,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:20,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:20,173 INFO L85 PathProgramCache]: Analyzing trace with hash -215114758, now seen corresponding path program 1 times [2022-07-22 12:17:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:20,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313187499] [2022-07-22 12:17:20,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:20,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:17:20,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313187499] [2022-07-22 12:17:20,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313187499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:20,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:17:20,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812213318] [2022-07-22 12:17:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:20,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:17:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:17:20,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:17:20,754 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:22,110 INFO L93 Difference]: Finished difference Result 696 states and 1248 transitions. [2022-07-22 12:17:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:17:22,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 12:17:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:22,127 INFO L225 Difference]: With dead ends: 696 [2022-07-22 12:17:22,127 INFO L226 Difference]: Without dead ends: 421 [2022-07-22 12:17:22,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 12:17:22,135 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 432 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:22,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 44 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 12:17:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-07-22 12:17:22,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2022-07-22 12:17:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3833333333333333) internal successors, (581), 420 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 581 transitions. [2022-07-22 12:17:22,244 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 581 transitions. Word has length 66 [2022-07-22 12:17:22,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:22,245 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 581 transitions. [2022-07-22 12:17:22,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:22,246 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 581 transitions. [2022-07-22 12:17:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-07-22 12:17:22,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:22,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:22,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 12:17:22,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:22,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:22,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2134418076, now seen corresponding path program 1 times [2022-07-22 12:17:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:22,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026628846] [2022-07-22 12:17:22,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:22,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-22 12:17:22,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:22,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026628846] [2022-07-22 12:17:22,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026628846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:22,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:22,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:17:22,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199826765] [2022-07-22 12:17:22,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:22,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:17:22,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:22,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:17:22,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:22,657 INFO L87 Difference]: Start difference. First operand 421 states and 581 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:23,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:23,220 INFO L93 Difference]: Finished difference Result 979 states and 1440 transitions. [2022-07-22 12:17:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:17:23,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2022-07-22 12:17:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:23,224 INFO L225 Difference]: With dead ends: 979 [2022-07-22 12:17:23,224 INFO L226 Difference]: Without dead ends: 699 [2022-07-22 12:17:23,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:23,226 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 76 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:23,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 226 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:17:23,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-22 12:17:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 560. [2022-07-22 12:17:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3148479427549196) internal successors, (735), 559 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 735 transitions. [2022-07-22 12:17:23,243 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 735 transitions. Word has length 247 [2022-07-22 12:17:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:23,246 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 735 transitions. [2022-07-22 12:17:23,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:23,247 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 735 transitions. [2022-07-22 12:17:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-22 12:17:23,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:23,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:23,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 12:17:23,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:23,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1074368107, now seen corresponding path program 1 times [2022-07-22 12:17:23,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:23,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404671695] [2022-07-22 12:17:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:23,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-22 12:17:23,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:23,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404671695] [2022-07-22 12:17:23,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404671695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:23,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:23,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 12:17:23,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974136373] [2022-07-22 12:17:23,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:23,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:17:23,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:23,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:17:23,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:23,573 INFO L87 Difference]: Start difference. First operand 560 states and 735 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:24,122 INFO L93 Difference]: Finished difference Result 1118 states and 1533 transitions. [2022-07-22 12:17:24,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:17:24,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2022-07-22 12:17:24,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:24,125 INFO L225 Difference]: With dead ends: 1118 [2022-07-22 12:17:24,125 INFO L226 Difference]: Without dead ends: 699 [2022-07-22 12:17:24,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:24,126 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 55 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:24,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 34 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:17:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-22 12:17:24,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2022-07-22 12:17:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2808022922636104) internal successors, (894), 698 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 894 transitions. [2022-07-22 12:17:24,159 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 894 transitions. Word has length 253 [2022-07-22 12:17:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:24,160 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 894 transitions. [2022-07-22 12:17:24,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:24,161 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 894 transitions. [2022-07-22 12:17:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-22 12:17:24,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:24,163 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:24,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 12:17:24,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:24,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1070818898, now seen corresponding path program 1 times [2022-07-22 12:17:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:24,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414004741] [2022-07-22 12:17:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:24,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-22 12:17:24,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:24,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414004741] [2022-07-22 12:17:24,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414004741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:24,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:24,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:17:24,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096049688] [2022-07-22 12:17:24,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:24,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:17:24,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:24,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:17:24,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:24,412 INFO L87 Difference]: Start difference. First operand 699 states and 894 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:24,909 INFO L93 Difference]: Finished difference Result 1396 states and 1831 transitions. [2022-07-22 12:17:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:17:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2022-07-22 12:17:24,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:24,913 INFO L225 Difference]: With dead ends: 1396 [2022-07-22 12:17:24,913 INFO L226 Difference]: Without dead ends: 838 [2022-07-22 12:17:24,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:24,915 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 76 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:24,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 215 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:17:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-07-22 12:17:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-07-22 12:17:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2461170848267622) internal successors, (1043), 837 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1043 transitions. [2022-07-22 12:17:24,932 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1043 transitions. Word has length 321 [2022-07-22 12:17:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:24,932 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1043 transitions. [2022-07-22 12:17:24,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1043 transitions. [2022-07-22 12:17:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-22 12:17:24,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:24,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:24,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 12:17:24,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1080639968, now seen corresponding path program 1 times [2022-07-22 12:17:24,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:24,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169596050] [2022-07-22 12:17:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:24,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-22 12:17:25,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:25,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169596050] [2022-07-22 12:17:25,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169596050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:25,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:25,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:17:25,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082493146] [2022-07-22 12:17:25,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:25,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:17:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:25,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:17:25,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:17:25,280 INFO L87 Difference]: Start difference. First operand 838 states and 1043 transitions. Second operand has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:25,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:25,874 INFO L93 Difference]: Finished difference Result 1590 states and 1995 transitions. [2022-07-22 12:17:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:17:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2022-07-22 12:17:25,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:25,877 INFO L225 Difference]: With dead ends: 1590 [2022-07-22 12:17:25,877 INFO L226 Difference]: Without dead ends: 838 [2022-07-22 12:17:25,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:17:25,883 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 198 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:25,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 22 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:17:25,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-07-22 12:17:25,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-07-22 12:17:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2413381123058542) internal successors, (1039), 837 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1039 transitions. [2022-07-22 12:17:25,897 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1039 transitions. Word has length 330 [2022-07-22 12:17:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:25,898 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1039 transitions. [2022-07-22 12:17:25,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:25,901 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1039 transitions. [2022-07-22 12:17:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-07-22 12:17:25,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:25,919 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:25,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 12:17:25,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash -398245702, now seen corresponding path program 1 times [2022-07-22 12:17:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:25,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339786895] [2022-07-22 12:17:25,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:25,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 391 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:17:26,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:26,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339786895] [2022-07-22 12:17:26,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339786895] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:17:26,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753852399] [2022-07-22 12:17:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:26,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:17:26,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:17:26,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:17:26,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 12:17:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:26,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:17:26,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:17:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-22 12:17:27,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:17:27,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753852399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:27,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:17:27,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 12:17:27,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85270221] [2022-07-22 12:17:27,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:27,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:17:27,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:27,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:17:27,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:17:27,095 INFO L87 Difference]: Start difference. First operand 838 states and 1039 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:27,643 INFO L93 Difference]: Finished difference Result 2091 states and 2637 transitions. [2022-07-22 12:17:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:17:27,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 366 [2022-07-22 12:17:27,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:27,648 INFO L225 Difference]: With dead ends: 2091 [2022-07-22 12:17:27,648 INFO L226 Difference]: Without dead ends: 1394 [2022-07-22 12:17:27,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:17:27,653 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 26 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:27,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 195 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:17:27,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-07-22 12:17:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2022-07-22 12:17:27,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.198851399856425) internal successors, (1670), 1393 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1670 transitions. [2022-07-22 12:17:27,687 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1670 transitions. Word has length 366 [2022-07-22 12:17:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:27,687 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 1670 transitions. [2022-07-22 12:17:27,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1670 transitions. [2022-07-22 12:17:27,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-22 12:17:27,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:27,692 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:27,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 12:17:27,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-22 12:17:27,893 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:27,893 INFO L85 PathProgramCache]: Analyzing trace with hash 627376470, now seen corresponding path program 1 times [2022-07-22 12:17:27,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:27,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298953416] [2022-07-22 12:17:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:27,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-22 12:17:28,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:28,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298953416] [2022-07-22 12:17:28,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298953416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:28,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:28,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:17:28,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492172269] [2022-07-22 12:17:28,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:28,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:17:28,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:28,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:17:28,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:28,186 INFO L87 Difference]: Start difference. First operand 1394 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:28,675 INFO L93 Difference]: Finished difference Result 3064 states and 3736 transitions. [2022-07-22 12:17:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:17:28,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 379 [2022-07-22 12:17:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:28,681 INFO L225 Difference]: With dead ends: 3064 [2022-07-22 12:17:28,681 INFO L226 Difference]: Without dead ends: 1811 [2022-07-22 12:17:28,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:17:28,683 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 76 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:28,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 225 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:17:28,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2022-07-22 12:17:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1672. [2022-07-22 12:17:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.1807301017354876) internal successors, (1973), 1671 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1973 transitions. [2022-07-22 12:17:28,732 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1973 transitions. Word has length 379 [2022-07-22 12:17:28,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:28,732 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 1973 transitions. [2022-07-22 12:17:28,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1973 transitions. [2022-07-22 12:17:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-22 12:17:28,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:17:28,737 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:28,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 12:17:28,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:17:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:17:28,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1407739099, now seen corresponding path program 1 times [2022-07-22 12:17:28,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:17:28,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650279654] [2022-07-22 12:17:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:17:28,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:17:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:17:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-22 12:17:29,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:17:29,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650279654] [2022-07-22 12:17:29,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650279654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:17:29,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:17:29,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:17:29,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523170288] [2022-07-22 12:17:29,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:17:29,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:17:29,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:17:29,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:17:29,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:17:29,088 INFO L87 Difference]: Start difference. First operand 1672 states and 1973 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:29,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:17:29,695 INFO L93 Difference]: Finished difference Result 3119 states and 3668 transitions. [2022-07-22 12:17:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:17:29,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2022-07-22 12:17:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:17:29,697 INFO L225 Difference]: With dead ends: 3119 [2022-07-22 12:17:29,697 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 12:17:29,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:17:29,701 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 159 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:17:29,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 22 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:17:29,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 12:17:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 12:17:29,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 12:17:29,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 380 [2022-07-22 12:17:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:17:29,703 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 12:17:29,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:17:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 12:17:29,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 12:17:29,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 12:17:29,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 12:17:29,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 12:17:29,906 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-07-22 12:17:29,906 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2022-07-22 12:17:29,906 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,907 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,908 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,908 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2022-07-22 12:17:29,909 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-22 12:17:29,909 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-22 12:17:29,909 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-22 12:17:29,909 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-22 12:17:29,909 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-22 12:17:29,909 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-22 12:17:29,910 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2022-07-22 12:17:29,910 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2022-07-22 12:17:29,910 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2022-07-22 12:17:29,910 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2022-07-22 12:17:29,910 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2022-07-22 12:17:29,910 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2022-07-22 12:17:29,916 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-22 12:17:29,917 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,918 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-22 12:17:29,919 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,920 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-22 12:17:29,921 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-22 12:17:29,922 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2022-07-22 12:17:29,922 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2022-07-22 12:17:29,935 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2022-07-22 12:17:29,935 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,935 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-22 12:17:29,936 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2022-07-22 12:17:29,937 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-22 12:17:29,938 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-22 12:17:29,939 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-22 12:17:29,939 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-22 12:17:29,939 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-22 12:17:29,939 INFO L895 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (not (= ~a19~0 6)) .cse0 .cse1) (and (= ~a10~0 0) .cse0 .cse1) (and (= ~a10~0 3) .cse0 .cse1) (and (= ~a10~0 4) .cse0 .cse1))) [2022-07-22 12:17:29,939 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2022-07-22 12:17:29,939 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2022-07-22 12:17:29,940 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2022-07-22 12:17:29,940 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2022-07-22 12:17:29,940 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,940 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,940 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-22 12:17:29,941 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L902 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2022-07-22 12:17:29,942 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-22 12:17:29,943 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-22 12:17:29,944 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-22 12:17:29,944 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2022-07-22 12:17:29,944 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,945 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-22 12:17:29,946 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (not (= ~a19~0 6)) .cse0 .cse1) (and (= ~a10~0 0) .cse0 .cse1) (and (= ~a10~0 3) .cse0 .cse1) (and (= ~a10~0 4) .cse0 .cse1))) [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,947 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-22 12:17:29,948 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2022-07-22 12:17:29,949 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2022-07-22 12:17:29,950 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,950 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,951 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,951 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,951 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,951 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-22 12:17:29,952 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-22 12:17:29,956 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:17:29,969 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 12:17:29,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:17:29 BoogieIcfgContainer [2022-07-22 12:17:29,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 12:17:29,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 12:17:29,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 12:17:29,999 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 12:17:30,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:17:19" (3/4) ... [2022-07-22 12:17:30,002 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 12:17:30,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 12:17:30,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 12:17:30,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 12:17:30,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 12:17:30,154 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 12:17:30,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 12:17:30,154 INFO L158 Benchmark]: Toolchain (without parser) took 12668.66ms. Allocated memory was 88.1MB in the beginning and 201.3MB in the end (delta: 113.2MB). Free memory was 65.9MB in the beginning and 152.2MB in the end (delta: -86.3MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,155 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 12:17:30,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.25ms. Allocated memory is still 88.1MB. Free memory was 65.7MB in the beginning and 46.4MB in the end (delta: 19.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.41ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 38.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,155 INFO L158 Benchmark]: Boogie Preprocessor took 127.53ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 38.4MB in the beginning and 77.3MB in the end (delta: -38.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,156 INFO L158 Benchmark]: RCFGBuilder took 1519.21ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 47.4MB in the end (delta: 30.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,156 INFO L158 Benchmark]: TraceAbstraction took 10018.43ms. Allocated memory was 107.0MB in the beginning and 201.3MB in the end (delta: 94.4MB). Free memory was 47.0MB in the beginning and 161.6MB in the end (delta: -114.6MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,156 INFO L158 Benchmark]: Witness Printer took 154.83ms. Allocated memory is still 201.3MB. Free memory was 161.6MB in the beginning and 152.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 12:17:30,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.25ms. Allocated memory is still 88.1MB. Free memory was 65.7MB in the beginning and 46.4MB in the end (delta: 19.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.41ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 38.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.53ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 38.4MB in the beginning and 77.3MB in the end (delta: -38.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1519.21ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 47.4MB in the end (delta: 30.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10018.43ms. Allocated memory was 107.0MB in the beginning and 201.3MB in the end (delta: 94.4MB). Free memory was 47.0MB in the beginning and 161.6MB in the end (delta: -114.6MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. * Witness Printer took 154.83ms. Allocated memory is still 201.3MB. Free memory was 161.6MB in the beginning and 152.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 212]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1098 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1098 mSDsluCounter, 983 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 633 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3948 IncrementalHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 633 mSolverCounterUnsat, 919 mSDtfsCounter, 3948 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 397 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1672occurred in iteration=7, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 278 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 32 NumberOfFragments, 85 HoareAnnotationTreeSize, 3 FomulaSimplifications, 168 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 376 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 2708 NumberOfCodeBlocks, 2708 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2699 ConstructedInterpolants, 0 QuantifiedInterpolants, 13017 SizeOfPredicates, 0 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 2924/2969 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((!(a19 == 6) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || ((a10 == 3 && 14 == a4) && a12 == 0)) || ((a10 == 4 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((!(a19 == 6) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || ((a10 == 3 && 14 == a4) && a12 == 0)) || ((a10 == 4 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:17:30,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE