./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/openssl/s3_clnt.blast.03.i.cil-1.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 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:34:25,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:34:25,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:34:25,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:34:25,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:34:25,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:34:25,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:34:25,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:34:25,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:34:25,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:34:25,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:34:25,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:34:25,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:34:25,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:34:25,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:34:25,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:34:25,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:34:25,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:34:25,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:34:25,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:34:25,814 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:34:25,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:34:25,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:34:25,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:34:25,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:34:25,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:34:25,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:34:25,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:34:25,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:34:25,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:34:25,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:34:25,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:34:25,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:34:25,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:34:25,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:34:25,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:34:25,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:34:25,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:34:25,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:34:25,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:34:25,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:34:25,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:34:25,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:34:25,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:34:25,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:34:25,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:34:25,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:34:25,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:34:25,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:34:25,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:34:25,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:34:25,862 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:34:25,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:34:25,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:34:25,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:34:25,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:34:25,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:34:25,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:34:25,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:34:25,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:34:25,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:34:25,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:34:25,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:34:25,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:34:25,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:34:25,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:34:25,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:34:25,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:34:25,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:34:25,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:34:25,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:34:25,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:34:25,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:34:25,874 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:34:25,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:34:25,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:34:25,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 [2022-07-20 22:34:26,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:34:26,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:34:26,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:34:26,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:34:26,224 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:34:26,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2022-07-20 22:34:26,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6de51a065/10e3fa24dbd84748a0f11e369633895d/FLAGebe48ddec [2022-07-20 22:34:26,845 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:34:26,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2022-07-20 22:34:26,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6de51a065/10e3fa24dbd84748a0f11e369633895d/FLAGebe48ddec [2022-07-20 22:34:27,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6de51a065/10e3fa24dbd84748a0f11e369633895d [2022-07-20 22:34:27,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:34:27,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:34:27,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:34:27,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:34:27,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:34:27,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa2f099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27, skipping insertion in model container [2022-07-20 22:34:27,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:34:27,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:34:27,535 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/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2022-07-20 22:34:27,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:34:27,556 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:34:27,648 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/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2022-07-20 22:34:27,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:34:27,667 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:34:27,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27 WrapperNode [2022-07-20 22:34:27,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:34:27,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:34:27,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:34:27,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:34:27,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,742 INFO L137 Inliner]: procedures = 31, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 718 [2022-07-20 22:34:27,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:34:27,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:34:27,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:34:27,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:34:27,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:34:27,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:34:27,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:34:27,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:34:27,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (1/1) ... [2022-07-20 22:34:27,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:34:27,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:34:27,917 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) [2022-07-20 22:34:27,938 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 [2022-07-20 22:34:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:34:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 22:34:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 22:34:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 22:34:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 22:34:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:34:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 22:34:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:34:27,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:34:28,101 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:34:28,102 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:34:28,115 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 22:34:30,996 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-07-20 22:34:30,997 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-07-20 22:34:30,997 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:34:31,005 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:34:31,006 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 22:34:31,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:34:31 BoogieIcfgContainer [2022-07-20 22:34:31,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:34:31,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:34:31,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:34:31,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:34:31,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:34:27" (1/3) ... [2022-07-20 22:34:31,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd62bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:34:31, skipping insertion in model container [2022-07-20 22:34:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:34:27" (2/3) ... [2022-07-20 22:34:31,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd62bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:34:31, skipping insertion in model container [2022-07-20 22:34:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:34:31" (3/3) ... [2022-07-20 22:34:31,017 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2022-07-20 22:34:31,029 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:34:31,030 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:34:31,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:34:31,083 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@7a5ba4d6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c0820ff [2022-07-20 22:34:31,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:34:31,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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) [2022-07-20 22:34:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-20 22:34:31,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:31,101 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] [2022-07-20 22:34:31,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:31,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2022-07-20 22:34:31,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:31,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468391115] [2022-07-20 22:34:31,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:31,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:34:31,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:31,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468391115] [2022-07-20 22:34:31,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468391115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:31,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:31,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860028144] [2022-07-20 22:34:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:31,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:31,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:31,713 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-07-20 22:34:33,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:34,057 INFO L93 Difference]: Finished difference Result 255 states and 430 transitions. [2022-07-20 22:34:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:34,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2022-07-20 22:34:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:34,068 INFO L225 Difference]: With dead ends: 255 [2022-07-20 22:34:34,071 INFO L226 Difference]: Without dead ends: 116 [2022-07-20 22:34:34,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:34,081 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 7 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:34,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 530 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:34:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-07-20 22:34:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2022-07-20 22:34:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 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) [2022-07-20 22:34:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2022-07-20 22:34:34,143 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2022-07-20 22:34:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:34,143 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2022-07-20 22:34:34,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-07-20 22:34:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2022-07-20 22:34:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-20 22:34:34,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:34,147 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-20 22:34:34,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:34:34,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1001988123, now seen corresponding path program 1 times [2022-07-20 22:34:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583176612] [2022-07-20 22:34:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 22:34:34,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:34,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583176612] [2022-07-20 22:34:34,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583176612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:34,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:34,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:34:34,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829680552] [2022-07-20 22:34:34,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:34,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:34:34,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:34,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:34:34,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:34:34,549 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-07-20 22:34:34,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:34,596 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2022-07-20 22:34:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:34:34,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 38 [2022-07-20 22:34:34,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:34,601 INFO L225 Difference]: With dead ends: 321 [2022-07-20 22:34:34,603 INFO L226 Difference]: Without dead ends: 216 [2022-07-20 22:34:34,604 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 [2022-07-20 22:34:34,606 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 124 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:34,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 310 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 22:34:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-07-20 22:34:34,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-07-20 22:34:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.4883720930232558) internal successors, (320), 215 states have internal predecessors, (320), 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) [2022-07-20 22:34:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 320 transitions. [2022-07-20 22:34:34,645 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 320 transitions. Word has length 38 [2022-07-20 22:34:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:34,646 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 320 transitions. [2022-07-20 22:34:34,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-07-20 22:34:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 320 transitions. [2022-07-20 22:34:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-20 22:34:34,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:34,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:34:34,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 22:34:34,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:34,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:34,653 INFO L85 PathProgramCache]: Analyzing trace with hash -596933037, now seen corresponding path program 1 times [2022-07-20 22:34:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:34,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060618460] [2022-07-20 22:34:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 22:34:34,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:34,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060618460] [2022-07-20 22:34:34,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060618460] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:34,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:34,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:34:34,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685619045] [2022-07-20 22:34:34,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:34,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:34:34,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:34,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:34:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:34:34,950 INFO L87 Difference]: Start difference. First operand 216 states and 320 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-07-20 22:34:36,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:37,019 INFO L93 Difference]: Finished difference Result 420 states and 629 transitions. [2022-07-20 22:34:37,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:34:37,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 53 [2022-07-20 22:34:37,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:37,024 INFO L225 Difference]: With dead ends: 420 [2022-07-20 22:34:37,024 INFO L226 Difference]: Without dead ends: 315 [2022-07-20 22:34:37,025 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 [2022-07-20 22:34:37,026 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:37,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 461 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-20 22:34:37,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-20 22:34:37,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-07-20 22:34:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.484076433121019) internal successors, (466), 314 states have internal predecessors, (466), 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) [2022-07-20 22:34:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 466 transitions. [2022-07-20 22:34:37,052 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 466 transitions. Word has length 53 [2022-07-20 22:34:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:37,052 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 466 transitions. [2022-07-20 22:34:37,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-07-20 22:34:37,053 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 466 transitions. [2022-07-20 22:34:37,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-20 22:34:37,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:37,055 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-07-20 22:34:37,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 22:34:37,062 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:37,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:37,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1173568974, now seen corresponding path program 1 times [2022-07-20 22:34:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:37,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948155340] [2022-07-20 22:34:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:34:37,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:37,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948155340] [2022-07-20 22:34:37,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948155340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:37,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:37,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:37,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463304035] [2022-07-20 22:34:37,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:37,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:37,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:37,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:37,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:37,388 INFO L87 Difference]: Start difference. First operand 315 states and 466 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-20 22:34:39,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:39,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:39,806 INFO L93 Difference]: Finished difference Result 891 states and 1325 transitions. [2022-07-20 22:34:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:39,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 71 [2022-07-20 22:34:39,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:39,809 INFO L225 Difference]: With dead ends: 891 [2022-07-20 22:34:39,809 INFO L226 Difference]: Without dead ends: 586 [2022-07-20 22:34:39,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:39,811 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 107 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:39,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 265 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-20 22:34:39,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-07-20 22:34:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 387. [2022-07-20 22:34:39,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.5336787564766838) internal successors, (592), 386 states have internal predecessors, (592), 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) [2022-07-20 22:34:39,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 592 transitions. [2022-07-20 22:34:39,848 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 592 transitions. Word has length 71 [2022-07-20 22:34:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:39,849 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 592 transitions. [2022-07-20 22:34:39,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-20 22:34:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 592 transitions. [2022-07-20 22:34:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-20 22:34:39,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:39,854 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-07-20 22:34:39,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 22:34:39,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:39,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2025585655, now seen corresponding path program 1 times [2022-07-20 22:34:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:39,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68657630] [2022-07-20 22:34:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:34:40,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:40,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68657630] [2022-07-20 22:34:40,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68657630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:40,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:40,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:40,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267969854] [2022-07-20 22:34:40,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:40,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:40,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:40,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:40,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:40,093 INFO L87 Difference]: Start difference. First operand 387 states and 592 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-07-20 22:34:42,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:44,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:44,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:44,547 INFO L93 Difference]: Finished difference Result 942 states and 1439 transitions. [2022-07-20 22:34:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:44,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 72 [2022-07-20 22:34:44,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:44,551 INFO L225 Difference]: With dead ends: 942 [2022-07-20 22:34:44,551 INFO L226 Difference]: Without dead ends: 565 [2022-07-20 22:34:44,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:44,553 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 91 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:44,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 550 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-07-20 22:34:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-07-20 22:34:44,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 439. [2022-07-20 22:34:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.552511415525114) internal successors, (680), 438 states have internal predecessors, (680), 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) [2022-07-20 22:34:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 680 transitions. [2022-07-20 22:34:44,567 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 680 transitions. Word has length 72 [2022-07-20 22:34:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:44,567 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 680 transitions. [2022-07-20 22:34:44,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-07-20 22:34:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 680 transitions. [2022-07-20 22:34:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-20 22:34:44,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:44,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-07-20 22:34:44,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 22:34:44,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:44,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1885037045, now seen corresponding path program 1 times [2022-07-20 22:34:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:44,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188536578] [2022-07-20 22:34:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:44,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:34:44,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:44,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188536578] [2022-07-20 22:34:44,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188536578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:44,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:44,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:44,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623027044] [2022-07-20 22:34:44,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:44,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:44,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:44,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:44,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:44,804 INFO L87 Difference]: Start difference. First operand 439 states and 680 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-07-20 22:34:46,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:47,164 INFO L93 Difference]: Finished difference Result 1139 states and 1753 transitions. [2022-07-20 22:34:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 72 [2022-07-20 22:34:47,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:47,168 INFO L225 Difference]: With dead ends: 1139 [2022-07-20 22:34:47,168 INFO L226 Difference]: Without dead ends: 710 [2022-07-20 22:34:47,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:47,170 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 107 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:47,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:34:47,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-20 22:34:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 462. [2022-07-20 22:34:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.5704989154013016) internal successors, (724), 461 states have internal predecessors, (724), 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) [2022-07-20 22:34:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 724 transitions. [2022-07-20 22:34:47,189 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 724 transitions. Word has length 72 [2022-07-20 22:34:47,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:47,189 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 724 transitions. [2022-07-20 22:34:47,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-07-20 22:34:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 724 transitions. [2022-07-20 22:34:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-20 22:34:47,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:47,191 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:34:47,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 22:34:47,192 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1523957901, now seen corresponding path program 1 times [2022-07-20 22:34:47,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:47,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669437468] [2022-07-20 22:34:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:47,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:34:47,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:47,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669437468] [2022-07-20 22:34:47,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669437468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:47,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:47,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:47,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663875566] [2022-07-20 22:34:47,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:47,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:47,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:47,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:47,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:47,528 INFO L87 Difference]: Start difference. First operand 462 states and 724 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:34:49,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:51,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:51,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:51,931 INFO L93 Difference]: Finished difference Result 1092 states and 1701 transitions. [2022-07-20 22:34:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:51,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 92 [2022-07-20 22:34:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:51,934 INFO L225 Difference]: With dead ends: 1092 [2022-07-20 22:34:51,934 INFO L226 Difference]: Without dead ends: 640 [2022-07-20 22:34:51,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:51,935 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 93 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:51,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 550 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-07-20 22:34:51,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-07-20 22:34:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 508. [2022-07-20 22:34:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 507 states have (on average 1.581854043392505) internal successors, (802), 507 states have internal predecessors, (802), 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) [2022-07-20 22:34:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 802 transitions. [2022-07-20 22:34:51,949 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 802 transitions. Word has length 92 [2022-07-20 22:34:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:51,949 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 802 transitions. [2022-07-20 22:34:51,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:34:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 802 transitions. [2022-07-20 22:34:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-20 22:34:51,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:51,956 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:34:51,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 22:34:51,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:51,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1877523057, now seen corresponding path program 1 times [2022-07-20 22:34:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:51,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151984814] [2022-07-20 22:34:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:51,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 22:34:52,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151984814] [2022-07-20 22:34:52,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151984814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:52,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:52,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642858436] [2022-07-20 22:34:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:52,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:52,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:52,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:52,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:52,186 INFO L87 Difference]: Start difference. First operand 508 states and 802 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-07-20 22:34:54,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:56,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:56,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:56,453 INFO L93 Difference]: Finished difference Result 1092 states and 1718 transitions. [2022-07-20 22:34:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:56,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 92 [2022-07-20 22:34:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:56,463 INFO L225 Difference]: With dead ends: 1092 [2022-07-20 22:34:56,463 INFO L226 Difference]: Without dead ends: 594 [2022-07-20 22:34:56,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:56,465 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 40 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:56,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 494 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2022-07-20 22:34:56,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-07-20 22:34:56,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 548. [2022-07-20 22:34:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5904936014625228) internal successors, (870), 547 states have internal predecessors, (870), 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) [2022-07-20 22:34:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 870 transitions. [2022-07-20 22:34:56,481 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 870 transitions. Word has length 92 [2022-07-20 22:34:56,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:56,481 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 870 transitions. [2022-07-20 22:34:56,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-07-20 22:34:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 870 transitions. [2022-07-20 22:34:56,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-20 22:34:56,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:56,483 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:34:56,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 22:34:56,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:56,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:56,484 INFO L85 PathProgramCache]: Analyzing trace with hash 377535094, now seen corresponding path program 1 times [2022-07-20 22:34:56,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:56,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381802953] [2022-07-20 22:34:56,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:56,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:34:56,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:56,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381802953] [2022-07-20 22:34:56,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381802953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:56,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:56,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681967215] [2022-07-20 22:34:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:56,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:56,705 INFO L87 Difference]: Start difference. First operand 548 states and 870 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-07-20 22:34:58,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:34:59,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:34:59,009 INFO L93 Difference]: Finished difference Result 1282 states and 1998 transitions. [2022-07-20 22:34:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:34:59,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 93 [2022-07-20 22:34:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:34:59,013 INFO L225 Difference]: With dead ends: 1282 [2022-07-20 22:34:59,013 INFO L226 Difference]: Without dead ends: 744 [2022-07-20 22:34:59,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:34:59,015 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:34:59,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:34:59,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-20 22:34:59,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 548. [2022-07-20 22:34:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5795246800731262) internal successors, (864), 547 states have internal predecessors, (864), 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) [2022-07-20 22:34:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 864 transitions. [2022-07-20 22:34:59,037 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 864 transitions. Word has length 93 [2022-07-20 22:34:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:34:59,037 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 864 transitions. [2022-07-20 22:34:59,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-07-20 22:34:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 864 transitions. [2022-07-20 22:34:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-20 22:34:59,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:34:59,039 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:34:59,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 22:34:59,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:34:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:34:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1171686517, now seen corresponding path program 2 times [2022-07-20 22:34:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:34:59,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017541824] [2022-07-20 22:34:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:34:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:34:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:34:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:34:59,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:34:59,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017541824] [2022-07-20 22:34:59,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017541824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:34:59,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:34:59,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:34:59,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824167901] [2022-07-20 22:34:59,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:34:59,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:34:59,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:34:59,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:34:59,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:34:59,269 INFO L87 Difference]: Start difference. First operand 548 states and 864 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-07-20 22:35:01,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:03,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:03,651 INFO L93 Difference]: Finished difference Result 1279 states and 1983 transitions. [2022-07-20 22:35:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:03,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 106 [2022-07-20 22:35:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:03,655 INFO L225 Difference]: With dead ends: 1279 [2022-07-20 22:35:03,655 INFO L226 Difference]: Without dead ends: 741 [2022-07-20 22:35:03,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:03,657 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 111 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:03,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 282 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 203 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 22:35:03,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-07-20 22:35:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 548. [2022-07-20 22:35:03,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5612431444241317) internal successors, (854), 547 states have internal predecessors, (854), 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) [2022-07-20 22:35:03,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 854 transitions. [2022-07-20 22:35:03,675 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 854 transitions. Word has length 106 [2022-07-20 22:35:03,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:03,675 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 854 transitions. [2022-07-20 22:35:03,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-07-20 22:35:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 854 transitions. [2022-07-20 22:35:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-20 22:35:03,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:03,678 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:03,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 22:35:03,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1788158099, now seen corresponding path program 1 times [2022-07-20 22:35:03,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:03,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338091914] [2022-07-20 22:35:03,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:03,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:03,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338091914] [2022-07-20 22:35:03,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338091914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:03,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:03,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268590473] [2022-07-20 22:35:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:03,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:03,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:03,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:03,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:03,909 INFO L87 Difference]: Start difference. First operand 548 states and 854 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-07-20 22:35:05,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:07,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:08,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:08,261 INFO L93 Difference]: Finished difference Result 1210 states and 1870 transitions. [2022-07-20 22:35:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:08,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 106 [2022-07-20 22:35:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:08,264 INFO L225 Difference]: With dead ends: 1210 [2022-07-20 22:35:08,264 INFO L226 Difference]: Without dead ends: 672 [2022-07-20 22:35:08,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:08,266 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 97 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:08,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 538 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 22:35:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-07-20 22:35:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 548. [2022-07-20 22:35:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5575868372943327) internal successors, (852), 547 states have internal predecessors, (852), 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) [2022-07-20 22:35:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 852 transitions. [2022-07-20 22:35:08,295 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 852 transitions. Word has length 106 [2022-07-20 22:35:08,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:08,296 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 852 transitions. [2022-07-20 22:35:08,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-07-20 22:35:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 852 transitions. [2022-07-20 22:35:08,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-20 22:35:08,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:08,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:08,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 22:35:08,299 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:08,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:08,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1946109419, now seen corresponding path program 1 times [2022-07-20 22:35:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:08,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946945771] [2022-07-20 22:35:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:08,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:08,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946945771] [2022-07-20 22:35:08,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946945771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:08,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:08,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:08,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37383626] [2022-07-20 22:35:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:08,507 INFO L87 Difference]: Start difference. First operand 548 states and 852 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-07-20 22:35:10,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:12,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:12,785 INFO L93 Difference]: Finished difference Result 1130 states and 1746 transitions. [2022-07-20 22:35:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:12,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 106 [2022-07-20 22:35:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:12,788 INFO L225 Difference]: With dead ends: 1130 [2022-07-20 22:35:12,789 INFO L226 Difference]: Without dead ends: 592 [2022-07-20 22:35:12,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:12,790 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 46 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:12,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 492 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 22:35:12,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-20 22:35:12,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 548. [2022-07-20 22:35:12,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5539305301645339) internal successors, (850), 547 states have internal predecessors, (850), 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) [2022-07-20 22:35:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 850 transitions. [2022-07-20 22:35:12,820 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 850 transitions. Word has length 106 [2022-07-20 22:35:12,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:12,821 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 850 transitions. [2022-07-20 22:35:12,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2022-07-20 22:35:12,821 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 850 transitions. [2022-07-20 22:35:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 22:35:12,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:12,823 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:12,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 22:35:12,823 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1275446372, now seen corresponding path program 1 times [2022-07-20 22:35:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:12,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125575578] [2022-07-20 22:35:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:12,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:12,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:12,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125575578] [2022-07-20 22:35:12,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125575578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:12,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:12,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:12,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136891794] [2022-07-20 22:35:12,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:12,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:12,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:12,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:12,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:13,000 INFO L87 Difference]: Start difference. First operand 548 states and 850 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-07-20 22:35:15,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:15,338 INFO L93 Difference]: Finished difference Result 1280 states and 1956 transitions. [2022-07-20 22:35:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:15,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 107 [2022-07-20 22:35:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:15,342 INFO L225 Difference]: With dead ends: 1280 [2022-07-20 22:35:15,342 INFO L226 Difference]: Without dead ends: 742 [2022-07-20 22:35:15,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:15,344 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:15,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 286 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:35:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-20 22:35:15,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 548. [2022-07-20 22:35:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5356489945155394) internal successors, (840), 547 states have internal predecessors, (840), 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) [2022-07-20 22:35:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 840 transitions. [2022-07-20 22:35:15,359 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 840 transitions. Word has length 107 [2022-07-20 22:35:15,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:15,359 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 840 transitions. [2022-07-20 22:35:15,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-07-20 22:35:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 840 transitions. [2022-07-20 22:35:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 22:35:15,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:15,361 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:15,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 22:35:15,362 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:15,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:15,362 INFO L85 PathProgramCache]: Analyzing trace with hash 889473249, now seen corresponding path program 1 times [2022-07-20 22:35:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:15,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437666804] [2022-07-20 22:35:15,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:15,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:15,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:15,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437666804] [2022-07-20 22:35:15,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437666804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:15,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:15,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:15,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128061838] [2022-07-20 22:35:15,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:15,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:15,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:15,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:15,541 INFO L87 Difference]: Start difference. First operand 548 states and 840 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-07-20 22:35:17,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:17,877 INFO L93 Difference]: Finished difference Result 1164 states and 1763 transitions. [2022-07-20 22:35:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:17,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 107 [2022-07-20 22:35:17,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:17,882 INFO L225 Difference]: With dead ends: 1164 [2022-07-20 22:35:17,882 INFO L226 Difference]: Without dead ends: 817 [2022-07-20 22:35:17,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:17,884 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 113 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:17,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 492 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:35:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-07-20 22:35:17,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 596. [2022-07-20 22:35:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 595 states have (on average 1.5210084033613445) internal successors, (905), 595 states have internal predecessors, (905), 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) [2022-07-20 22:35:17,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 905 transitions. [2022-07-20 22:35:17,903 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 905 transitions. Word has length 107 [2022-07-20 22:35:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:17,903 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 905 transitions. [2022-07-20 22:35:17,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-07-20 22:35:17,904 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 905 transitions. [2022-07-20 22:35:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 22:35:17,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:17,906 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:35:17,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 22:35:17,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:17,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:17,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2005302672, now seen corresponding path program 1 times [2022-07-20 22:35:17,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:17,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882395865] [2022-07-20 22:35:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:35:18,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:18,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882395865] [2022-07-20 22:35:18,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882395865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:18,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:18,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:18,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887252239] [2022-07-20 22:35:18,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:18,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:18,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:18,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:18,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:18,102 INFO L87 Difference]: Start difference. First operand 596 states and 905 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2022-07-20 22:35:20,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:20,409 INFO L93 Difference]: Finished difference Result 1457 states and 2189 transitions. [2022-07-20 22:35:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 107 [2022-07-20 22:35:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:20,413 INFO L225 Difference]: With dead ends: 1457 [2022-07-20 22:35:20,413 INFO L226 Difference]: Without dead ends: 871 [2022-07-20 22:35:20,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:20,415 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 93 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:20,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 266 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:35:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-07-20 22:35:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 710. [2022-07-20 22:35:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 709 states have (on average 1.538787023977433) internal successors, (1091), 709 states have internal predecessors, (1091), 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) [2022-07-20 22:35:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1091 transitions. [2022-07-20 22:35:20,434 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1091 transitions. Word has length 107 [2022-07-20 22:35:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:20,434 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 1091 transitions. [2022-07-20 22:35:20,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2022-07-20 22:35:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1091 transitions. [2022-07-20 22:35:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 22:35:20,436 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:20,436 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:20,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 22:35:20,437 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:20,437 INFO L85 PathProgramCache]: Analyzing trace with hash -386918792, now seen corresponding path program 1 times [2022-07-20 22:35:20,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:20,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654311948] [2022-07-20 22:35:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:20,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:20,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:20,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654311948] [2022-07-20 22:35:20,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654311948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:20,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:20,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:20,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586561360] [2022-07-20 22:35:20,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:20,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:20,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:20,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:20,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:20,637 INFO L87 Difference]: Start difference. First operand 710 states and 1091 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:22,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:24,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:24,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:24,964 INFO L93 Difference]: Finished difference Result 1534 states and 2342 transitions. [2022-07-20 22:35:24,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 108 [2022-07-20 22:35:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:24,968 INFO L225 Difference]: With dead ends: 1534 [2022-07-20 22:35:24,968 INFO L226 Difference]: Without dead ends: 834 [2022-07-20 22:35:24,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:24,970 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 91 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:24,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 530 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 22:35:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-07-20 22:35:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 710. [2022-07-20 22:35:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 709 states have (on average 1.535966149506347) internal successors, (1089), 709 states have internal predecessors, (1089), 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) [2022-07-20 22:35:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1089 transitions. [2022-07-20 22:35:24,989 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1089 transitions. Word has length 108 [2022-07-20 22:35:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:24,989 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 1089 transitions. [2022-07-20 22:35:24,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1089 transitions. [2022-07-20 22:35:24,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 22:35:24,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:24,992 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-07-20 22:35:24,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 22:35:24,992 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:24,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:24,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1089441208, now seen corresponding path program 1 times [2022-07-20 22:35:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:24,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150197800] [2022-07-20 22:35:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:25,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:25,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150197800] [2022-07-20 22:35:25,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150197800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:25,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:25,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:25,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700479912] [2022-07-20 22:35:25,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:25,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:25,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:25,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:25,166 INFO L87 Difference]: Start difference. First operand 710 states and 1089 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:27,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:29,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:29,473 INFO L93 Difference]: Finished difference Result 1283 states and 1956 transitions. [2022-07-20 22:35:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 108 [2022-07-20 22:35:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:29,476 INFO L225 Difference]: With dead ends: 1283 [2022-07-20 22:35:29,476 INFO L226 Difference]: Without dead ends: 828 [2022-07-20 22:35:29,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:29,478 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 85 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:29,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 524 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 223 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 22:35:29,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-07-20 22:35:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 710. [2022-07-20 22:35:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 709 states have (on average 1.533145275035261) internal successors, (1087), 709 states have internal predecessors, (1087), 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) [2022-07-20 22:35:29,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1087 transitions. [2022-07-20 22:35:29,496 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1087 transitions. Word has length 108 [2022-07-20 22:35:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:29,497 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 1087 transitions. [2022-07-20 22:35:29,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1087 transitions. [2022-07-20 22:35:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 22:35:29,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:29,499 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:35:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 22:35:29,499 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:29,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash 546201863, now seen corresponding path program 1 times [2022-07-20 22:35:29,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:29,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976850419] [2022-07-20 22:35:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:29,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:35:29,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:29,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976850419] [2022-07-20 22:35:29,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976850419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:29,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:29,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:29,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9104263] [2022-07-20 22:35:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:29,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:29,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:29,683 INFO L87 Difference]: Start difference. First operand 710 states and 1087 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2022-07-20 22:35:31,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:31,974 INFO L93 Difference]: Finished difference Result 1604 states and 2430 transitions. [2022-07-20 22:35:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:31,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 108 [2022-07-20 22:35:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:31,977 INFO L225 Difference]: With dead ends: 1604 [2022-07-20 22:35:31,978 INFO L226 Difference]: Without dead ends: 904 [2022-07-20 22:35:31,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:31,979 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 92 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:31,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 268 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 22:35:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-07-20 22:35:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 746. [2022-07-20 22:35:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.5516778523489934) internal successors, (1156), 745 states have internal predecessors, (1156), 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) [2022-07-20 22:35:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1156 transitions. [2022-07-20 22:35:32,000 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1156 transitions. Word has length 108 [2022-07-20 22:35:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:32,000 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1156 transitions. [2022-07-20 22:35:32,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2022-07-20 22:35:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1156 transitions. [2022-07-20 22:35:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 22:35:32,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:32,002 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:35:32,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 22:35:32,003 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:32,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:32,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1432649300, now seen corresponding path program 1 times [2022-07-20 22:35:32,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:32,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93845352] [2022-07-20 22:35:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:35:32,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:32,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93845352] [2022-07-20 22:35:32,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93845352] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:32,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:32,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006717408] [2022-07-20 22:35:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:32,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:32,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:32,177 INFO L87 Difference]: Start difference. First operand 746 states and 1156 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2022-07-20 22:35:34,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:36,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:36,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:36,497 INFO L93 Difference]: Finished difference Result 1596 states and 2459 transitions. [2022-07-20 22:35:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:36,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 108 [2022-07-20 22:35:36,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:36,501 INFO L225 Difference]: With dead ends: 1596 [2022-07-20 22:35:36,502 INFO L226 Difference]: Without dead ends: 860 [2022-07-20 22:35:36,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:36,503 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 61 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:36,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 518 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 220 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-07-20 22:35:36,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-07-20 22:35:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 778. [2022-07-20 22:35:36,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 777 states have (on average 1.5546975546975548) internal successors, (1208), 777 states have internal predecessors, (1208), 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) [2022-07-20 22:35:36,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1208 transitions. [2022-07-20 22:35:36,524 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1208 transitions. Word has length 108 [2022-07-20 22:35:36,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:36,525 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1208 transitions. [2022-07-20 22:35:36,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2022-07-20 22:35:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1208 transitions. [2022-07-20 22:35:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 22:35:36,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:36,529 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:36,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 22:35:36,529 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:36,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:36,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1574655866, now seen corresponding path program 1 times [2022-07-20 22:35:36,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:36,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458603203] [2022-07-20 22:35:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:36,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:36,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:36,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458603203] [2022-07-20 22:35:36,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458603203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:36,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:36,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:36,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602684211] [2022-07-20 22:35:36,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:36,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:36,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:36,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:36,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:36,716 INFO L87 Difference]: Start difference. First operand 778 states and 1208 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:38,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:38,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:38,978 INFO L93 Difference]: Finished difference Result 1704 states and 2600 transitions. [2022-07-20 22:35:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:38,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 108 [2022-07-20 22:35:38,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:38,982 INFO L225 Difference]: With dead ends: 1704 [2022-07-20 22:35:38,982 INFO L226 Difference]: Without dead ends: 936 [2022-07-20 22:35:38,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:38,984 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 114 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:38,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 22:35:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-07-20 22:35:39,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 778. [2022-07-20 22:35:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 777 states have (on average 1.5366795366795367) internal successors, (1194), 777 states have internal predecessors, (1194), 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) [2022-07-20 22:35:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1194 transitions. [2022-07-20 22:35:39,005 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1194 transitions. Word has length 108 [2022-07-20 22:35:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:39,006 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1194 transitions. [2022-07-20 22:35:39,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1194 transitions. [2022-07-20 22:35:39,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-20 22:35:39,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:39,016 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-07-20 22:35:39,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-20 22:35:39,017 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:39,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:39,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1243951430, now seen corresponding path program 1 times [2022-07-20 22:35:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:39,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532204140] [2022-07-20 22:35:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:39,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:39,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:39,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532204140] [2022-07-20 22:35:39,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532204140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:39,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:39,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73585376] [2022-07-20 22:35:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:39,170 INFO L87 Difference]: Start difference. First operand 778 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:41,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:41,453 INFO L93 Difference]: Finished difference Result 1486 states and 2256 transitions. [2022-07-20 22:35:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:41,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 108 [2022-07-20 22:35:41,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:41,457 INFO L225 Difference]: With dead ends: 1486 [2022-07-20 22:35:41,458 INFO L226 Difference]: Without dead ends: 991 [2022-07-20 22:35:41,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:41,459 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 107 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:41,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 474 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 22:35:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-07-20 22:35:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 781. [2022-07-20 22:35:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.5243589743589743) internal successors, (1189), 780 states have internal predecessors, (1189), 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) [2022-07-20 22:35:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1189 transitions. [2022-07-20 22:35:41,481 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1189 transitions. Word has length 108 [2022-07-20 22:35:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:41,482 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1189 transitions. [2022-07-20 22:35:41,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-07-20 22:35:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1189 transitions. [2022-07-20 22:35:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-20 22:35:41,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:41,484 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:35:41,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-20 22:35:41,484 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:41,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:41,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1536349215, now seen corresponding path program 1 times [2022-07-20 22:35:41,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:41,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791587435] [2022-07-20 22:35:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:41,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:41,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:41,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791587435] [2022-07-20 22:35:41,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791587435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:41,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:41,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:41,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165050988] [2022-07-20 22:35:41,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:41,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:41,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:41,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:41,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:41,664 INFO L87 Difference]: Start difference. First operand 781 states and 1189 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-07-20 22:35:43,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:43,935 INFO L93 Difference]: Finished difference Result 1710 states and 2562 transitions. [2022-07-20 22:35:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 109 [2022-07-20 22:35:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:43,939 INFO L225 Difference]: With dead ends: 1710 [2022-07-20 22:35:43,939 INFO L226 Difference]: Without dead ends: 939 [2022-07-20 22:35:43,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:43,941 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 112 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:43,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 268 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 22:35:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-07-20 22:35:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 781. [2022-07-20 22:35:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.5038461538461538) internal successors, (1173), 780 states have internal predecessors, (1173), 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) [2022-07-20 22:35:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1173 transitions. [2022-07-20 22:35:43,964 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1173 transitions. Word has length 109 [2022-07-20 22:35:43,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:43,964 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1173 transitions. [2022-07-20 22:35:43,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-07-20 22:35:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1173 transitions. [2022-07-20 22:35:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-20 22:35:43,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:43,966 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:35:43,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-20 22:35:43,967 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1835668675, now seen corresponding path program 1 times [2022-07-20 22:35:43,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:43,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289956670] [2022-07-20 22:35:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:43,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:35:44,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:44,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289956670] [2022-07-20 22:35:44,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289956670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:44,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:44,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:44,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822044454] [2022-07-20 22:35:44,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:44,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:44,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:44,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:44,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:44,145 INFO L87 Difference]: Start difference. First operand 781 states and 1173 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2022-07-20 22:35:45,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:45,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:45,730 INFO L93 Difference]: Finished difference Result 1710 states and 2530 transitions. [2022-07-20 22:35:45,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:45,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 109 [2022-07-20 22:35:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:45,734 INFO L225 Difference]: With dead ends: 1710 [2022-07-20 22:35:45,734 INFO L226 Difference]: Without dead ends: 939 [2022-07-20 22:35:45,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:45,736 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 87 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:45,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-20 22:35:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-07-20 22:35:45,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 787. [2022-07-20 22:35:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.5038167938931297) internal successors, (1182), 786 states have internal predecessors, (1182), 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) [2022-07-20 22:35:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1182 transitions. [2022-07-20 22:35:45,759 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1182 transitions. Word has length 109 [2022-07-20 22:35:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:45,759 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1182 transitions. [2022-07-20 22:35:45,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2022-07-20 22:35:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1182 transitions. [2022-07-20 22:35:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-20 22:35:45,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:45,762 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-07-20 22:35:45,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-20 22:35:45,762 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:45,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:45,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1487102300, now seen corresponding path program 1 times [2022-07-20 22:35:45,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:45,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664346014] [2022-07-20 22:35:45,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:45,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-20 22:35:45,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:45,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664346014] [2022-07-20 22:35:45,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664346014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:45,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:45,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:45,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672590177] [2022-07-20 22:35:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:45,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:45,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:45,929 INFO L87 Difference]: Start difference. First operand 787 states and 1182 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2022-07-20 22:35:47,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:48,184 INFO L93 Difference]: Finished difference Result 1716 states and 2536 transitions. [2022-07-20 22:35:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:48,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 110 [2022-07-20 22:35:48,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:48,187 INFO L225 Difference]: With dead ends: 1716 [2022-07-20 22:35:48,187 INFO L226 Difference]: Without dead ends: 939 [2022-07-20 22:35:48,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:48,188 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 105 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:48,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 270 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 211 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 22:35:48,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-07-20 22:35:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 787. [2022-07-20 22:35:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.4898218829516539) internal successors, (1171), 786 states have internal predecessors, (1171), 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) [2022-07-20 22:35:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1171 transitions. [2022-07-20 22:35:48,233 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1171 transitions. Word has length 110 [2022-07-20 22:35:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:48,234 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1171 transitions. [2022-07-20 22:35:48,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2022-07-20 22:35:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1171 transitions. [2022-07-20 22:35:48,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-20 22:35:48,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:48,236 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:35:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-20 22:35:48,236 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash -540911783, now seen corresponding path program 1 times [2022-07-20 22:35:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:48,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915620731] [2022-07-20 22:35:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-20 22:35:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915620731] [2022-07-20 22:35:48,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915620731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:48,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:48,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:35:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285651567] [2022-07-20 22:35:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:48,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:35:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:35:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:35:48,431 INFO L87 Difference]: Start difference. First operand 787 states and 1171 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-07-20 22:35:50,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:50,679 INFO L93 Difference]: Finished difference Result 1707 states and 2502 transitions. [2022-07-20 22:35:50,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:35:50,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 110 [2022-07-20 22:35:50,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:50,681 INFO L225 Difference]: With dead ends: 1707 [2022-07-20 22:35:50,681 INFO L226 Difference]: Without dead ends: 927 [2022-07-20 22:35:50,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:35:50,683 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 83 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:50,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 270 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 22:35:50,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2022-07-20 22:35:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 793. [2022-07-20 22:35:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 792 states have (on average 1.4898989898989898) internal successors, (1180), 792 states have internal predecessors, (1180), 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) [2022-07-20 22:35:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1180 transitions. [2022-07-20 22:35:50,707 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1180 transitions. Word has length 110 [2022-07-20 22:35:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:50,708 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1180 transitions. [2022-07-20 22:35:50,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-07-20 22:35:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1180 transitions. [2022-07-20 22:35:50,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-20 22:35:50,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:50,710 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-07-20 22:35:50,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-20 22:35:50,710 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:50,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1069705694, now seen corresponding path program 1 times [2022-07-20 22:35:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:50,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122049203] [2022-07-20 22:35:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:50,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:35:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-20 22:35:50,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:35:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122049203] [2022-07-20 22:35:50,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122049203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:35:50,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:35:50,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:35:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484984931] [2022-07-20 22:35:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:35:50,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:35:50,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:35:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:35:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:35:50,914 INFO L87 Difference]: Start difference. First operand 793 states and 1180 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-07-20 22:35:52,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:35:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:35:52,970 INFO L93 Difference]: Finished difference Result 1577 states and 2354 transitions. [2022-07-20 22:35:52,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:35:52,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 110 [2022-07-20 22:35:52,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:35:52,973 INFO L225 Difference]: With dead ends: 1577 [2022-07-20 22:35:52,973 INFO L226 Difference]: Without dead ends: 1074 [2022-07-20 22:35:52,974 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 [2022-07-20 22:35:52,974 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:35:52,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-07-20 22:35:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-07-20 22:35:52,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1074. [2022-07-20 22:35:53,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 1073 states have (on average 1.4874184529356944) internal successors, (1596), 1073 states have internal predecessors, (1596), 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) [2022-07-20 22:35:53,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1596 transitions. [2022-07-20 22:35:53,003 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1596 transitions. Word has length 110 [2022-07-20 22:35:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:35:53,010 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1596 transitions. [2022-07-20 22:35:53,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-07-20 22:35:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1596 transitions. [2022-07-20 22:35:53,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-20 22:35:53,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:35:53,013 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-07-20 22:35:53,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-20 22:35:53,014 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:35:53,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:35:53,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1254631592, now seen corresponding path program 1 times [2022-07-20 22:35:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:35:53,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47332975] [2022-07-20 22:35:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:35:53,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:35:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 22:35:53,997 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 22:35:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 22:35:54,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-20 22:35:54,421 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 22:35:54,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:35:54,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-20 22:35:54,430 INFO L356 BasicCegarLoop]: Path program histogram: [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] [2022-07-20 22:35:54,433 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:35:54,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:35:54 BoogieIcfgContainer [2022-07-20 22:35:54,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:35:54,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:35:54,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:35:54,579 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:35:54,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:34:31" (3/4) ... [2022-07-20 22:35:54,582 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-20 22:35:54,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:35:54,584 INFO L158 Benchmark]: Toolchain (without parser) took 87452.93ms. Allocated memory was 48.2MB in the beginning and 232.8MB in the end (delta: 184.5MB). Free memory was 32.3MB in the beginning and 101.4MB in the end (delta: -69.2MB). Peak memory consumption was 114.7MB. Max. memory is 16.1GB. [2022-07-20 22:35:54,584 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 48.2MB. Free memory was 30.3MB in the beginning and 30.3MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:35:54,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.12ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.0MB in the beginning and 35.4MB in the end (delta: -3.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-07-20 22:35:54,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.46ms. Allocated memory is still 58.7MB. Free memory was 35.4MB in the beginning and 30.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-20 22:35:54,587 INFO L158 Benchmark]: Boogie Preprocessor took 123.83ms. Allocated memory is still 58.7MB. Free memory was 30.6MB in the beginning and 33.6MB in the end (delta: -3.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-07-20 22:35:54,591 INFO L158 Benchmark]: RCFGBuilder took 3129.71ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 33.6MB in the beginning and 54.5MB in the end (delta: -20.9MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-07-20 22:35:54,593 INFO L158 Benchmark]: TraceAbstraction took 83567.28ms. Allocated memory was 86.0MB in the beginning and 232.8MB in the end (delta: 146.8MB). Free memory was 53.9MB in the beginning and 101.4MB in the end (delta: -47.5MB). Peak memory consumption was 128.7MB. Max. memory is 16.1GB. [2022-07-20 22:35:54,594 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 232.8MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:35:54,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 48.2MB. Free memory was 30.3MB in the beginning and 30.3MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.12ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.0MB in the beginning and 35.4MB in the end (delta: -3.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.46ms. Allocated memory is still 58.7MB. Free memory was 35.4MB in the beginning and 30.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.83ms. Allocated memory is still 58.7MB. Free memory was 30.6MB in the beginning and 33.6MB in the end (delta: -3.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3129.71ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 33.6MB in the beginning and 54.5MB in the end (delta: -20.9MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 83567.28ms. Allocated memory was 86.0MB in the beginning and 232.8MB in the end (delta: 146.8MB). Free memory was 53.9MB in the beginning and 101.4MB in the end (delta: -47.5MB). Peak memory consumption was 128.7MB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 232.8MB. Free memory is still 101.4MB. There was no memory consumed. 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 - UnprovableResult [Line: 1665]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1360. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={4:0}] [L1077] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1081] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1082] s->ctx = malloc(sizeof(SSL_CTX)) [L1083] s->session = malloc(sizeof(SSL_SESSION)) [L1084] s->state = 12292 [L1085] s->version = __VERIFIER_nondet_int() [L1087] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1088] EXPR s->ctx [L1088] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1089] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1090] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1091] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->flags = __VERIFIER_nondet_long() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1094] EXPR s->s3 [L1094] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1096] EXPR s->s3 [L1096] (s->s3)->tmp.next_state = __VERIFIER_nondet_int() [L1098] CALL ssl3_connect(s) [L1104] BUF_MEM *buf ; [L1105] unsigned long tmp ; [L1106] unsigned long l ; [L1107] long num1 ; [L1108] void (*cb)() ; [L1109] int ret ; [L1110] int new_state ; [L1111] int state ; [L1112] int skip ; [L1113] int tmp___1 = __VERIFIER_nondet_int() ; [L1114] int tmp___2 = __VERIFIER_nondet_int() ; [L1115] int tmp___3 = __VERIFIER_nondet_int() ; [L1116] int tmp___4 = __VERIFIER_nondet_int() ; [L1117] int tmp___5 = __VERIFIER_nondet_int() ; [L1118] int tmp___6 = __VERIFIER_nondet_int() ; [L1119] int tmp___7 = __VERIFIER_nondet_int() ; [L1120] int tmp___8 = __VERIFIER_nondet_int() ; [L1121] long tmp___9 = __VERIFIER_nondet_long() ; [L1122] int blastFlag ; [L1125] blastFlag = 0 [L1126] s->hit=__VERIFIER_nondet_int () [L1127] s->state = 12292 [L1128] tmp = __VERIFIER_nondet_int() [L1129] cb = (void (*)())((void *)0) [L1130] ret = -1 [L1131] skip = 0 [L1132] EXPR s->info_callback VAL [={0:0}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->info_callback={0:-2147483648}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1132] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1133] EXPR s->info_callback [L1133] cb = s->info_callback [L1141] EXPR s->in_handshake [L1141] s->in_handshake += 1 [L1142] COND FALSE !(tmp___1 & 12288) VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=12292, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND TRUE s->state == 12292 [L1258] s->new_session = 1 [L1259] s->state = 4096 [L1260] EXPR s->ctx [L1260] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1260] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1265] s->server = 0 VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1266] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1271] EXPR s->version VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->version=-6, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1271] COND FALSE !((s->version & 65280) != 768) [L1277] s->type = 4096 [L1278] EXPR s->init_buf VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->init_buf={0:1}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1278] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1296] COND FALSE !(! tmp___4) VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1302] COND FALSE !(! tmp___5) [L1308] s->state = 4368 [L1309] EXPR s->ctx [L1309] EXPR (s->ctx)->stats.sess_connect [L1309] (s->ctx)->stats.sess_connect += 1 [L1310] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967336, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->s3={-2:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND TRUE s->state == 4368 [L1314] s->shutdown = 0 [L1315] ret = __VERIFIER_nondet_int() [L1316] COND TRUE blastFlag == 0 [L1317] blastFlag = 1 VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1321] COND FALSE !(ret <= 0) [L1326] s->state = 4384 [L1327] s->init_num = 0 [L1328] EXPR s->bbio [L1328] EXPR s->wbio VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->bbio={0:11}, s->wbio={0:-13}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1328] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967336, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->s3={-2:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, init=1, ret=13, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND TRUE s->state == 4384 [L1336] ret = __VERIFIER_nondet_int() [L1337] COND TRUE blastFlag == 1 [L1338] blastFlag = 2 VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1346] COND FALSE !(ret <= 0) [L1351] s->hit VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->hit=0, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1351] COND FALSE !(s->hit) [L1354] s->state = 4400 VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1356] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967336, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-2:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND TRUE s->state == 4400 [L1360] EXPR s->s3 [L1360] EXPR (s->s3)->tmp.new_cipher [L1360] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:-2147483648}, ((s->s3)->tmp.new_cipher)->algorithms=4294967345, (s->s3)->tmp.new_cipher={-7:0}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-2:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1360] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 2 [L1365] blastFlag = 3 VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1369] COND FALSE !(ret <= 0) VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1375] s->state = 4416 [L1376] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967336, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->s3={-2:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 4400) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 4401) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1188] COND TRUE s->state == 4416 [L1380] ret = __VERIFIER_nondet_int() [L1381] COND TRUE blastFlag == 3 [L1382] blastFlag = 4 VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1386] COND FALSE !(ret <= 0) [L1391] s->state = 4432 [L1392] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1393] COND FALSE !(! tmp___6) VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967336, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-2:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 4400) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 4401) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 4416) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 4417) [L1194] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1194] COND TRUE s->state == 4432 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 VAL [={0:-2147483648}, blastFlag=4, init=1, ret=0, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1665] reach_error() VAL [={0:-2147483648}, blastFlag=4, init=1, ret=0, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=1, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.4s, OverallIterations: 27, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 75.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 mSolverCounterUnknown, 2438 SdHoareTripleChecker+Valid, 74.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2438 mSDsluCounter, 10162 SdHoareTripleChecker+Invalid, 72.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5839 mSDsCounter, 627 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4735 IncrementalHoareTripleChecker+Invalid, 5395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 627 mSolverCounterUnsat, 4323 mSDtfsCounter, 4735 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1074occurred in iteration=26, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 3331 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2554 NumberOfCodeBlocks, 2554 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2416 ConstructedInterpolants, 0 QuantifiedInterpolants, 6030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 2491/2491 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-20 22:35:54,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/openssl/s3_clnt.blast.03.i.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:35:56,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:35:56,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:35:56,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:35:56,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:35:56,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:35:56,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:35:56,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:35:56,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:35:56,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:35:56,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:35:56,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:35:56,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:35:56,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:35:56,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:35:56,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:35:56,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:35:56,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:35:56,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:35:56,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:35:56,719 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:35:56,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:35:56,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:35:56,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:35:56,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:35:56,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:35:56,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:35:56,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:35:56,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:35:56,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:35:56,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:35:56,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:35:56,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:35:56,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:35:56,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:35:56,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:35:56,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:35:56,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:35:56,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:35:56,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:35:56,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:35:56,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:35:56,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-20 22:35:56,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:35:56,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:35:56,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:35:56,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:35:56,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:35:56,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:35:56,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:35:56,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:35:56,800 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:35:56,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:35:56,801 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:35:56,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:35:56,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:35:56,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:35:56,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:35:56,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:35:56,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 22:35:56,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 22:35:56,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 22:35:56,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:35:56,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:35:56,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:35:56,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:35:56,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:35:56,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:35:56,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:35:56,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:35:56,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:35:56,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:35:56,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:35:56,806 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 22:35:56,806 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 22:35:56,806 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:35:56,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:35:56,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:35:56,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 22:35:56,807 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 [2022-07-20 22:35:57,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:35:57,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:35:57,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:35:57,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:35:57,168 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:35:57,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2022-07-20 22:35:57,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ee25f21/f29d81ddd3c3476b9e893ed5e9b80ef5/FLAGccf7189f0 [2022-07-20 22:35:57,867 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:35:57,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2022-07-20 22:35:57,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ee25f21/f29d81ddd3c3476b9e893ed5e9b80ef5/FLAGccf7189f0 [2022-07-20 22:35:58,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ee25f21/f29d81ddd3c3476b9e893ed5e9b80ef5 [2022-07-20 22:35:58,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:35:58,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:35:58,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:35:58,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:35:58,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:35:58,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb79adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58, skipping insertion in model container [2022-07-20 22:35:58,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:35:58,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:35:58,621 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/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2022-07-20 22:35:58,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:35:58,650 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 22:35:58,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:35:58,746 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/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2022-07-20 22:35:58,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:35:58,773 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:35:58,833 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/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2022-07-20 22:35:58,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:35:58,860 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:35:58,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58 WrapperNode [2022-07-20 22:35:58,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:35:58,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:35:58,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:35:58,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:35:58,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,957 INFO L137 Inliner]: procedures = 35, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 689 [2022-07-20 22:35:58,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:35:58,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:35:58,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:35:58,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:35:58,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:58,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:59,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:59,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:59,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:59,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:35:59,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:35:59,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:35:59,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:35:59,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (1/1) ... [2022-07-20 22:35:59,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:35:59,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:35:59,092 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) [2022-07-20 22:35:59,122 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 [2022-07-20 22:35:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:35:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 22:35:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 22:35:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 22:35:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 22:35:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 22:35:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:35:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:35:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 22:35:59,381 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:35:59,383 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:35:59,405 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 22:36:06,677 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-07-20 22:36:06,678 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-07-20 22:36:06,678 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:36:06,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:36:06,684 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 22:36:06,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:36:06 BoogieIcfgContainer [2022-07-20 22:36:06,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:36:06,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:36:06,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:36:06,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:36:06,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:35:58" (1/3) ... [2022-07-20 22:36:06,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a87848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:36:06, skipping insertion in model container [2022-07-20 22:36:06,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:35:58" (2/3) ... [2022-07-20 22:36:06,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a87848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:36:06, skipping insertion in model container [2022-07-20 22:36:06,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:36:06" (3/3) ... [2022-07-20 22:36:06,700 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2022-07-20 22:36:06,714 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:36:06,715 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:36:06,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:36:06,805 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@44fde82, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43e74fe5 [2022-07-20 22:36:06,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:36:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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) [2022-07-20 22:36:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-20 22:36:06,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:36:06,821 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] [2022-07-20 22:36:06,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:36:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:36:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2022-07-20 22:36:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 22:36:06,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737096810] [2022-07-20 22:36:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:36:06,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 22:36:06,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 22:36:06,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 22:36:06,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 22:36:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:36:07,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:36:07,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:36:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:36:07,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:36:07,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 22:36:07,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737096810] [2022-07-20 22:36:07,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737096810] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:36:07,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:36:07,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:36:07,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143054551] [2022-07-20 22:36:07,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:36:07,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:36:07,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 22:36:07,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:36:07,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:07,828 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-07-20 22:36:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:36:07,947 INFO L93 Difference]: Finished difference Result 369 states and 623 transitions. [2022-07-20 22:36:07,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:36:07,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2022-07-20 22:36:07,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:36:07,958 INFO L225 Difference]: With dead ends: 369 [2022-07-20 22:36:07,958 INFO L226 Difference]: Without dead ends: 213 [2022-07-20 22:36:07,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:07,964 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 180 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:36:07,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 22:36:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-07-20 22:36:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-07-20 22:36:08,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4952830188679245) internal successors, (317), 212 states have internal predecessors, (317), 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) [2022-07-20 22:36:08,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 317 transitions. [2022-07-20 22:36:08,014 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 317 transitions. Word has length 24 [2022-07-20 22:36:08,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:36:08,015 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 317 transitions. [2022-07-20 22:36:08,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-07-20 22:36:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 317 transitions. [2022-07-20 22:36:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-20 22:36:08,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:36:08,017 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-20 22:36:08,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 22:36:08,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 22:36:08,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:36:08,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:36:08,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1192110763, now seen corresponding path program 1 times [2022-07-20 22:36:08,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 22:36:08,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252503390] [2022-07-20 22:36:08,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:36:08,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 22:36:08,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 22:36:08,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 22:36:08,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 22:36:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:36:09,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:36:09,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:36:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:36:09,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:36:09,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 22:36:09,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252503390] [2022-07-20 22:36:09,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252503390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:36:09,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:36:09,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:36:09,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788075112] [2022-07-20 22:36:09,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:36:09,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:36:09,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 22:36:09,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:36:09,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:09,177 INFO L87 Difference]: Start difference. First operand 213 states and 317 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 22:36:11,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:36:11,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:36:11,297 INFO L93 Difference]: Finished difference Result 417 states and 626 transitions. [2022-07-20 22:36:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:36:11,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2022-07-20 22:36:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:36:11,300 INFO L225 Difference]: With dead ends: 417 [2022-07-20 22:36:11,300 INFO L226 Difference]: Without dead ends: 312 [2022-07-20 22:36:11,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:11,302 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:36:11,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 461 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-20 22:36:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-07-20 22:36:11,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-07-20 22:36:11,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.4887459807073955) internal successors, (463), 311 states have internal predecessors, (463), 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) [2022-07-20 22:36:11,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 463 transitions. [2022-07-20 22:36:11,323 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 463 transitions. Word has length 39 [2022-07-20 22:36:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:36:11,324 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 463 transitions. [2022-07-20 22:36:11,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 22:36:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 463 transitions. [2022-07-20 22:36:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-20 22:36:11,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:36:11,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:36:11,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 22:36:11,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 22:36:11,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:36:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:36:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1499463818, now seen corresponding path program 1 times [2022-07-20 22:36:11,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 22:36:11,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794061297] [2022-07-20 22:36:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:36:11,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 22:36:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 22:36:11,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 22:36:11,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 22:36:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:36:12,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:36:12,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:36:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 22:36:12,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:36:12,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 22:36:12,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794061297] [2022-07-20 22:36:12,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794061297] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:36:12,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:36:12,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:36:12,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219582811] [2022-07-20 22:36:12,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:36:12,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:36:12,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 22:36:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:36:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:12,609 INFO L87 Difference]: Start difference. First operand 312 states and 463 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-07-20 22:36:14,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:36:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:36:14,734 INFO L93 Difference]: Finished difference Result 618 states and 923 transitions. [2022-07-20 22:36:14,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:36:14,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 57 [2022-07-20 22:36:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:36:14,738 INFO L225 Difference]: With dead ends: 618 [2022-07-20 22:36:14,738 INFO L226 Difference]: Without dead ends: 414 [2022-07-20 22:36:14,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:14,740 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:36:14,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-20 22:36:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-20 22:36:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2022-07-20 22:36:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.4842615012106537) internal successors, (613), 413 states have internal predecessors, (613), 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) [2022-07-20 22:36:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 613 transitions. [2022-07-20 22:36:14,762 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 613 transitions. Word has length 57 [2022-07-20 22:36:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:36:14,763 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 613 transitions. [2022-07-20 22:36:14,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-07-20 22:36:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 613 transitions. [2022-07-20 22:36:14,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-20 22:36:14,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:36:14,767 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 22:36:14,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 22:36:14,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 22:36:14,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:36:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:36:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -817434927, now seen corresponding path program 1 times [2022-07-20 22:36:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 22:36:14,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197175154] [2022-07-20 22:36:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:36:14,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 22:36:14,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 22:36:14,991 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 22:36:14,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 22:36:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:36:15,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:36:15,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:36:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-20 22:36:16,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:36:16,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 22:36:16,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197175154] [2022-07-20 22:36:16,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197175154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:36:16,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:36:16,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:36:16,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398374998] [2022-07-20 22:36:16,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:36:16,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:36:16,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 22:36:16,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:36:16,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:16,070 INFO L87 Difference]: Start difference. First operand 414 states and 613 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2022-07-20 22:36:18,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 22:36:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:36:18,177 INFO L93 Difference]: Finished difference Result 821 states and 1222 transitions. [2022-07-20 22:36:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:36:18,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 77 [2022-07-20 22:36:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:36:18,180 INFO L225 Difference]: With dead ends: 821 [2022-07-20 22:36:18,180 INFO L226 Difference]: Without dead ends: 515 [2022-07-20 22:36:18,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:36:18,183 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:36:18,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 467 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-20 22:36:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-07-20 22:36:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2022-07-20 22:36:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.482490272373541) internal successors, (762), 514 states have internal predecessors, (762), 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) [2022-07-20 22:36:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 762 transitions. [2022-07-20 22:36:18,198 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 762 transitions. Word has length 77 [2022-07-20 22:36:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:36:18,199 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 762 transitions. [2022-07-20 22:36:18,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2022-07-20 22:36:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 762 transitions. [2022-07-20 22:36:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-20 22:36:18,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:36:18,205 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-07-20 22:36:18,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 22:36:18,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 22:36:18,419 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:36:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:36:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash 922615118, now seen corresponding path program 1 times [2022-07-20 22:36:18,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 22:36:18,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066979943] [2022-07-20 22:36:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:36:18,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 22:36:18,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 22:36:18,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 22:36:18,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 22:36:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:36:19,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-20 22:36:19,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:36:22,303 INFO L356 Elim1Store]: treesize reduction 32, result has 78.5 percent of original size [2022-07-20 22:36:22,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 1482 treesize of output 1090 [2022-07-20 22:36:41,416 WARN L233 SmtUtils]: Spent 18.97s on a formula simplification. DAG size of input: 205 DAG size of output: 93 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-07-20 22:36:41,417 INFO L356 Elim1Store]: treesize reduction 1374, result has 25.4 percent of original size [2022-07-20 22:36:41,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 4790 treesize of output 4750 [2022-07-20 22:36:41,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4345 treesize of output 3031 [2022-07-20 22:36:42,018 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 22:36:42,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2466 treesize of output 1710 [2022-07-20 22:36:43,157 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-20 22:36:43,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 968 treesize of output 891 [2022-07-20 22:36:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:43,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:44,363 INFO L244 Elim1Store]: Index analysis took 851 ms [2022-07-20 22:36:45,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 87 [2022-07-20 22:36:46,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:46,835 INFO L244 Elim1Store]: Index analysis took 640 ms [2022-07-20 22:36:47,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 111 [2022-07-20 22:36:48,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 22:36:48,824 INFO L244 Elim1Store]: Index analysis took 814 ms [2022-07-20 22:36:49,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 111 [2022-07-20 22:36:49,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 431 treesize of output 371 [2022-07-20 22:36:50,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 123 [2022-07-20 22:36:50,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 115