./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/s3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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/loops/s3.i -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 d053be7ac759c4172c4b0b5fbe009ed8f624c0c8659eb750e9996926d5d3b0a1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:15:51,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:15:51,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:15:51,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:15:51,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:15:51,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:15:51,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:15:51,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:15:51,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:15:51,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:15:51,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:15:51,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:15:51,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:15:51,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:15:51,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:15:51,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:15:51,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:15:51,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:15:51,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:15:51,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:15:51,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:15:51,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:15:51,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:15:51,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:15:51,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:15:51,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:15:51,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:15:51,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:15:51,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:15:51,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:15:51,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:15:51,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:15:51,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:15:51,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:15:51,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:15:51,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:15:51,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:15:51,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:15:51,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:15:51,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:15:51,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:15:51,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 12:15:51,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:15:51,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:15:51,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:15:51,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:15:51,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:15:51,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:15:51,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:15:51,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:15:51,908 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:15:51,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:15:51,909 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:15:51,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 12:15:51,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:15:51,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:15:51,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:15:51,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:15:51,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:15:51,910 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:15:51,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:15:51,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:15:51,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:15:51,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:15:51,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:15:51,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:15:51,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:15:51,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:15:51,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:15:51,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:15:51,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d053be7ac759c4172c4b0b5fbe009ed8f624c0c8659eb750e9996926d5d3b0a1 [2021-12-21 12:15:52,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:15:52,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:15:52,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:15:52,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:15:52,131 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:15:52,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/s3.i [2021-12-21 12:15:52,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5418c19a0/457c81412c754fdfbbab495abcb77fde/FLAGaf57e07bc [2021-12-21 12:15:52,712 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:15:52,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/s3.i [2021-12-21 12:15:52,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5418c19a0/457c81412c754fdfbbab495abcb77fde/FLAGaf57e07bc [2021-12-21 12:15:53,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5418c19a0/457c81412c754fdfbbab495abcb77fde [2021-12-21 12:15:53,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:15:53,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:15:53,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:15:53,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:15:53,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:15:53,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfd1375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53, skipping insertion in model container [2021-12-21 12:15:53,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:15:53,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:15:53,542 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/loops/s3.i[64167,64180] [2021-12-21 12:15:53,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:15:53,556 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:15:53,641 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/loops/s3.i[64167,64180] [2021-12-21 12:15:53,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:15:53,673 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:15:53,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53 WrapperNode [2021-12-21 12:15:53,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:15:53,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:15:53,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:15:53,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:15:53,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,756 INFO L137 Inliner]: procedures = 30, calls = 222, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 732 [2021-12-21 12:15:53,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:15:53,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:15:53,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:15:53,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:15:53,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:15:53,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:15:53,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:15:53,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:15:53,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (1/1) ... [2021-12-21 12:15:53,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:15:53,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:15:53,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 12:15:53,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 12:15:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:15:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 12:15:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 12:15:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 12:15:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 12:15:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 12:15:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 12:15:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:15:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:15:54,081 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:15:54,083 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:15:54,109 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 12:15:56,793 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-21 12:15:56,794 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-21 12:15:56,794 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:15:56,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:15:56,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 12:15:56,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:15:56 BoogieIcfgContainer [2021-12-21 12:15:56,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:15:56,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:15:56,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:15:56,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:15:56,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:15:53" (1/3) ... [2021-12-21 12:15:56,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a1b9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:15:56, skipping insertion in model container [2021-12-21 12:15:56,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:15:53" (2/3) ... [2021-12-21 12:15:56,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a1b9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:15:56, skipping insertion in model container [2021-12-21 12:15:56,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:15:56" (3/3) ... [2021-12-21 12:15:56,807 INFO L111 eAbstractionObserver]: Analyzing ICFG s3.i [2021-12-21 12:15:56,811 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:15:56,811 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 12:15:56,856 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:15:56,861 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 12:15:56,861 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 12:15:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 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) [2021-12-21 12:15:56,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 12:15:56,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:15:56,879 INFO L514 BasicCegarLoop]: 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] [2021-12-21 12:15:56,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:15:56,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:15:56,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1457703967, now seen corresponding path program 1 times [2021-12-21 12:15:56,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:15:56,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413902137] [2021-12-21 12:15:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:15:56,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:15:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:15:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:15:57,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:15:57,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413902137] [2021-12-21 12:15:57,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413902137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:15:57,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:15:57,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:15:57,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528509298] [2021-12-21 12:15:57,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:15:57,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:15:57,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:15:57,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:15:57,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:15:57,382 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 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) [2021-12-21 12:15:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:15:57,471 INFO L93 Difference]: Finished difference Result 375 states and 626 transitions. [2021-12-21 12:15:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:15:57,473 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 [2021-12-21 12:15:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:15:57,481 INFO L225 Difference]: With dead ends: 375 [2021-12-21 12:15:57,482 INFO L226 Difference]: Without dead ends: 217 [2021-12-21 12:15:57,484 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:15:57,487 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 181 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 402 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 [2021-12-21 12:15:57,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 402 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:15:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-21 12:15:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-12-21 12:15:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 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) [2021-12-21 12:15:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 321 transitions. [2021-12-21 12:15:57,529 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 321 transitions. Word has length 24 [2021-12-21 12:15:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:15:57,530 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 321 transitions. [2021-12-21 12:15:57,530 INFO L471 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) [2021-12-21 12:15:57,532 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 321 transitions. [2021-12-21 12:15:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-21 12:15:57,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:15:57,536 INFO L514 BasicCegarLoop]: 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] [2021-12-21 12:15:57,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 12:15:57,537 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:15:57,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:15:57,539 INFO L85 PathProgramCache]: Analyzing trace with hash 546953675, now seen corresponding path program 1 times [2021-12-21 12:15:57,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:15:57,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258500085] [2021-12-21 12:15:57,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:15:57,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:15:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:15:57,734 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:15:57,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:15:57,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258500085] [2021-12-21 12:15:57,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258500085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:15:57,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:15:57,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:15:57,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273762994] [2021-12-21 12:15:57,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:15:57,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:15:57,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:15:57,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:15:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:15:57,741 INFO L87 Difference]: Start difference. First operand 217 states and 321 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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) [2021-12-21 12:15:59,753 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 [] [2021-12-21 12:16:00,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:00,094 INFO L93 Difference]: Finished difference Result 612 states and 909 transitions. [2021-12-21 12:16:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:00,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 [2021-12-21 12:16:00,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:00,097 INFO L225 Difference]: With dead ends: 612 [2021-12-21 12:16:00,097 INFO L226 Difference]: Without dead ends: 402 [2021-12-21 12:16:00,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:00,099 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 107 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:00,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 271 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 12:16:00,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-12-21 12:16:00,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 265. [2021-12-21 12:16:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.5340909090909092) internal successors, (405), 264 states have internal predecessors, (405), 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) [2021-12-21 12:16:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 405 transitions. [2021-12-21 12:16:00,132 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 405 transitions. Word has length 39 [2021-12-21 12:16:00,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:00,133 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 405 transitions. [2021-12-21 12:16:00,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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) [2021-12-21 12:16:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 405 transitions. [2021-12-21 12:16:00,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-21 12:16:00,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:00,136 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-21 12:16:00,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 12:16:00,137 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:00,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:00,138 INFO L85 PathProgramCache]: Analyzing trace with hash -228723188, now seen corresponding path program 1 times [2021-12-21 12:16:00,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:00,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712745316] [2021-12-21 12:16:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:00,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:00,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:00,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712745316] [2021-12-21 12:16:00,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712745316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:00,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:00,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:00,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317679965] [2021-12-21 12:16:00,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:00,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:00,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:00,283 INFO L87 Difference]: Start difference. First operand 265 states and 405 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-12-21 12:16:02,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:04,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:04,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:04,507 INFO L93 Difference]: Finished difference Result 431 states and 660 transitions. [2021-12-21 12:16:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:04,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2021-12-21 12:16:04,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:04,510 INFO L225 Difference]: With dead ends: 431 [2021-12-21 12:16:04,510 INFO L226 Difference]: Without dead ends: 300 [2021-12-21 12:16:04,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:04,511 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 31 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:04,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 476 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-12-21 12:16:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2021-12-21 12:16:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.5425531914893618) internal successors, (435), 282 states have internal predecessors, (435), 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) [2021-12-21 12:16:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 435 transitions. [2021-12-21 12:16:04,541 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 435 transitions. Word has length 40 [2021-12-21 12:16:04,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:04,542 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 435 transitions. [2021-12-21 12:16:04,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-12-21 12:16:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 435 transitions. [2021-12-21 12:16:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-21 12:16:04,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:04,544 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-12-21 12:16:04,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 12:16:04,544 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:04,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:04,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1727416149, now seen corresponding path program 1 times [2021-12-21 12:16:04,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:04,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627652822] [2021-12-21 12:16:04,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:04,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:04,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:04,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627652822] [2021-12-21 12:16:04,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627652822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:04,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:04,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:04,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181839725] [2021-12-21 12:16:04,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:04,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:04,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:04,700 INFO L87 Difference]: Start difference. First operand 283 states and 435 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2021-12-21 12:16:06,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:08,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:08,967 INFO L93 Difference]: Finished difference Result 758 states and 1164 transitions. [2021-12-21 12:16:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:08,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2021-12-21 12:16:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:08,969 INFO L225 Difference]: With dead ends: 758 [2021-12-21 12:16:08,970 INFO L226 Difference]: Without dead ends: 482 [2021-12-21 12:16:08,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:08,971 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 113 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:08,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 501 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 207 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:08,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-12-21 12:16:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 308. [2021-12-21 12:16:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.52442996742671) internal successors, (468), 307 states have internal predecessors, (468), 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) [2021-12-21 12:16:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 468 transitions. [2021-12-21 12:16:08,981 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 468 transitions. Word has length 55 [2021-12-21 12:16:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:08,981 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 468 transitions. [2021-12-21 12:16:08,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2021-12-21 12:16:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 468 transitions. [2021-12-21 12:16:08,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-21 12:16:08,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:08,983 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:16:08,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 12:16:08,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1149096951, now seen corresponding path program 1 times [2021-12-21 12:16:08,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:08,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351593798] [2021-12-21 12:16:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:08,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:09,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:09,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351593798] [2021-12-21 12:16:09,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351593798] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:09,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:09,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:09,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600541731] [2021-12-21 12:16:09,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:09,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:09,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:09,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:09,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:09,089 INFO L87 Difference]: Start difference. First operand 308 states and 468 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2021-12-21 12:16:11,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:13,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:13,294 INFO L93 Difference]: Finished difference Result 484 states and 735 transitions. [2021-12-21 12:16:13,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:13,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2021-12-21 12:16:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:13,306 INFO L225 Difference]: With dead ends: 484 [2021-12-21 12:16:13,306 INFO L226 Difference]: Without dead ends: 324 [2021-12-21 12:16:13,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:13,311 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 35 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:13,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 474 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-12-21 12:16:13,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 308. [2021-12-21 12:16:13,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.521172638436482) internal successors, (467), 307 states have internal predecessors, (467), 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) [2021-12-21 12:16:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 467 transitions. [2021-12-21 12:16:13,323 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 467 transitions. Word has length 55 [2021-12-21 12:16:13,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:13,324 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 467 transitions. [2021-12-21 12:16:13,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2021-12-21 12:16:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 467 transitions. [2021-12-21 12:16:13,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-21 12:16:13,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:13,326 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-21 12:16:13,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 12:16:13,326 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:13,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:13,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1382837768, now seen corresponding path program 1 times [2021-12-21 12:16:13,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:13,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107734180] [2021-12-21 12:16:13,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:13,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:13,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:13,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107734180] [2021-12-21 12:16:13,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107734180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:13,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:13,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:13,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617392575] [2021-12-21 12:16:13,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:13,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:13,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:13,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:13,453 INFO L87 Difference]: Start difference. First operand 308 states and 467 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-21 12:16:15,465 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 [] [2021-12-21 12:16:15,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:15,718 INFO L93 Difference]: Finished difference Result 768 states and 1162 transitions. [2021-12-21 12:16:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:15,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2021-12-21 12:16:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:15,721 INFO L225 Difference]: With dead ends: 768 [2021-12-21 12:16:15,721 INFO L226 Difference]: Without dead ends: 470 [2021-12-21 12:16:15,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:15,722 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 119 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:15,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 292 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 12:16:15,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-12-21 12:16:15,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 312. [2021-12-21 12:16:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.5112540192926045) internal successors, (470), 311 states have internal predecessors, (470), 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) [2021-12-21 12:16:15,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 470 transitions. [2021-12-21 12:16:15,733 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 470 transitions. Word has length 56 [2021-12-21 12:16:15,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:15,733 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 470 transitions. [2021-12-21 12:16:15,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-12-21 12:16:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 470 transitions. [2021-12-21 12:16:15,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-21 12:16:15,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:15,735 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-12-21 12:16:15,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 12:16:15,735 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:15,735 INFO L85 PathProgramCache]: Analyzing trace with hash 270979954, now seen corresponding path program 1 times [2021-12-21 12:16:15,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:15,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741258334] [2021-12-21 12:16:15,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:15,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:15,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:15,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741258334] [2021-12-21 12:16:15,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741258334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:15,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:15,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:15,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797535028] [2021-12-21 12:16:15,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:15,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:15,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:15,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:15,838 INFO L87 Difference]: Start difference. First operand 312 states and 470 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-12-21 12:16:17,852 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 [] [2021-12-21 12:16:19,864 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 [] [2021-12-21 12:16:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:20,035 INFO L93 Difference]: Finished difference Result 490 states and 737 transitions. [2021-12-21 12:16:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:20,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 [2021-12-21 12:16:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:20,039 INFO L225 Difference]: With dead ends: 490 [2021-12-21 12:16:20,039 INFO L226 Difference]: Without dead ends: 328 [2021-12-21 12:16:20,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:20,040 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 31 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:20,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 470 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-12-21 12:16:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 312. [2021-12-21 12:16:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.5080385852090032) internal successors, (469), 311 states have internal predecessors, (469), 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) [2021-12-21 12:16:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 469 transitions. [2021-12-21 12:16:20,048 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 469 transitions. Word has length 57 [2021-12-21 12:16:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:20,049 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 469 transitions. [2021-12-21 12:16:20,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-12-21 12:16:20,050 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 469 transitions. [2021-12-21 12:16:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 12:16:20,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:20,051 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-21 12:16:20,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 12:16:20,051 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1460862829, now seen corresponding path program 1 times [2021-12-21 12:16:20,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:20,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43929958] [2021-12-21 12:16:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:20,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:20,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:20,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43929958] [2021-12-21 12:16:20,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43929958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:20,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:20,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:20,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211740468] [2021-12-21 12:16:20,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:20,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:20,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:20,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:20,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:20,175 INFO L87 Difference]: Start difference. First operand 312 states and 469 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-12-21 12:16:22,192 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 [] [2021-12-21 12:16:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:22,496 INFO L93 Difference]: Finished difference Result 772 states and 1158 transitions. [2021-12-21 12:16:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:22,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 58 [2021-12-21 12:16:22,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:22,503 INFO L225 Difference]: With dead ends: 772 [2021-12-21 12:16:22,503 INFO L226 Difference]: Without dead ends: 470 [2021-12-21 12:16:22,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:22,504 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 116 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:22,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 270 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 12:16:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-12-21 12:16:22,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 316. [2021-12-21 12:16:22,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.4984126984126984) internal successors, (472), 315 states have internal predecessors, (472), 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) [2021-12-21 12:16:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 472 transitions. [2021-12-21 12:16:22,515 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 472 transitions. Word has length 58 [2021-12-21 12:16:22,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:22,515 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 472 transitions. [2021-12-21 12:16:22,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-12-21 12:16:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 472 transitions. [2021-12-21 12:16:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 12:16:22,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:22,516 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-21 12:16:22,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 12:16:22,516 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:22,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:22,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1518169684, now seen corresponding path program 1 times [2021-12-21 12:16:22,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:22,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945983333] [2021-12-21 12:16:22,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:22,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-21 12:16:22,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:22,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945983333] [2021-12-21 12:16:22,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945983333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:22,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:22,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:16:22,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246712350] [2021-12-21 12:16:22,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:22,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:16:22,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:22,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:16:22,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:16:22,606 INFO L87 Difference]: Start difference. First operand 316 states and 472 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) [2021-12-21 12:16:24,616 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 [] [2021-12-21 12:16:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:24,659 INFO L93 Difference]: Finished difference Result 641 states and 962 transitions. [2021-12-21 12:16:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:16:24,660 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 58 [2021-12-21 12:16:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:24,662 INFO L225 Difference]: With dead ends: 641 [2021-12-21 12:16:24,662 INFO L226 Difference]: Without dead ends: 477 [2021-12-21 12:16:24,662 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:16:24,663 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 127 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 474 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 [2021-12-21 12:16:24,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 474 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 12:16:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-12-21 12:16:24,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2021-12-21 12:16:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.4915966386554622) internal successors, (710), 476 states have internal predecessors, (710), 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) [2021-12-21 12:16:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 710 transitions. [2021-12-21 12:16:24,672 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 710 transitions. Word has length 58 [2021-12-21 12:16:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:24,673 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 710 transitions. [2021-12-21 12:16:24,674 INFO L471 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) [2021-12-21 12:16:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 710 transitions. [2021-12-21 12:16:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 12:16:24,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:24,675 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-21 12:16:24,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 12:16:24,675 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:24,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash -853569578, now seen corresponding path program 1 times [2021-12-21 12:16:24,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:24,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355114969] [2021-12-21 12:16:24,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:24,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:16:24,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:24,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355114969] [2021-12-21 12:16:24,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355114969] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:24,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:24,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:16:24,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032017499] [2021-12-21 12:16:24,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:24,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:16:24,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:24,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:16:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:16:24,776 INFO L87 Difference]: Start difference. First operand 477 states and 710 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) [2021-12-21 12:16:26,785 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 [] [2021-12-21 12:16:26,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:26,832 INFO L93 Difference]: Finished difference Result 826 states and 1228 transitions. [2021-12-21 12:16:26,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:16:26,833 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 58 [2021-12-21 12:16:26,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:26,835 INFO L225 Difference]: With dead ends: 826 [2021-12-21 12:16:26,835 INFO L226 Difference]: Without dead ends: 501 [2021-12-21 12:16:26,836 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:16:26,837 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 15 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:26,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 354 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 12:16:26,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-12-21 12:16:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2021-12-21 12:16:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.484) internal successors, (742), 500 states have internal predecessors, (742), 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) [2021-12-21 12:16:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 742 transitions. [2021-12-21 12:16:26,847 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 742 transitions. Word has length 58 [2021-12-21 12:16:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:26,848 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 742 transitions. [2021-12-21 12:16:26,848 INFO L471 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) [2021-12-21 12:16:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 742 transitions. [2021-12-21 12:16:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-21 12:16:26,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:26,864 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-21 12:16:26,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 12:16:26,865 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:26,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash -533479020, now seen corresponding path program 1 times [2021-12-21 12:16:26,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:26,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156368648] [2021-12-21 12:16:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:26,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-21 12:16:26,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:26,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156368648] [2021-12-21 12:16:26,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156368648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:26,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:26,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:26,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011889762] [2021-12-21 12:16:26,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:27,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:27,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:27,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:27,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:27,002 INFO L87 Difference]: Start difference. First operand 501 states and 742 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2021-12-21 12:16:29,013 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 [] [2021-12-21 12:16:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:29,370 INFO L93 Difference]: Finished difference Result 1297 states and 1926 transitions. [2021-12-21 12:16:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 78 [2021-12-21 12:16:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:29,406 INFO L225 Difference]: With dead ends: 1297 [2021-12-21 12:16:29,406 INFO L226 Difference]: Without dead ends: 806 [2021-12-21 12:16:29,407 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:16:29,407 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 111 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:29,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 272 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 211 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 12:16:29,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-12-21 12:16:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 579. [2021-12-21 12:16:29,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 578 states have (on average 1.4965397923875432) internal successors, (865), 578 states have internal predecessors, (865), 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) [2021-12-21 12:16:29,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 865 transitions. [2021-12-21 12:16:29,419 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 865 transitions. Word has length 78 [2021-12-21 12:16:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:29,419 INFO L470 AbstractCegarLoop]: Abstraction has 579 states and 865 transitions. [2021-12-21 12:16:29,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2021-12-21 12:16:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 865 transitions. [2021-12-21 12:16:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-21 12:16:29,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:29,420 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-21 12:16:29,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 12:16:29,421 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:29,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:29,421 INFO L85 PathProgramCache]: Analyzing trace with hash 360007318, now seen corresponding path program 1 times [2021-12-21 12:16:29,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:29,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263777441] [2021-12-21 12:16:29,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:29,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:29,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:29,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263777441] [2021-12-21 12:16:29,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263777441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:29,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:29,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:29,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445698786] [2021-12-21 12:16:29,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:29,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:29,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:29,528 INFO L87 Difference]: Start difference. First operand 579 states and 865 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) [2021-12-21 12:16:31,544 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 [] [2021-12-21 12:16:31,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:31,786 INFO L93 Difference]: Finished difference Result 1363 states and 2022 transitions. [2021-12-21 12:16:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:31,787 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 78 [2021-12-21 12:16:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:31,790 INFO L225 Difference]: With dead ends: 1363 [2021-12-21 12:16:31,790 INFO L226 Difference]: Without dead ends: 794 [2021-12-21 12:16:31,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:31,792 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 106 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:31,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 270 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 12:16:31,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2021-12-21 12:16:31,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 594. [2021-12-21 12:16:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 1.5042158516020236) internal successors, (892), 593 states have internal predecessors, (892), 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) [2021-12-21 12:16:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 892 transitions. [2021-12-21 12:16:31,815 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 892 transitions. Word has length 78 [2021-12-21 12:16:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:31,815 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 892 transitions. [2021-12-21 12:16:31,816 INFO L471 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) [2021-12-21 12:16:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 892 transitions. [2021-12-21 12:16:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-21 12:16:31,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:31,817 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-12-21 12:16:31,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 12:16:31,817 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:31,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:31,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1728932100, now seen corresponding path program 1 times [2021-12-21 12:16:31,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:31,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713766180] [2021-12-21 12:16:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:31,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:31,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:31,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713766180] [2021-12-21 12:16:31,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713766180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:31,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:31,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:31,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881738184] [2021-12-21 12:16:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:31,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:31,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:31,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:31,913 INFO L87 Difference]: Start difference. First operand 594 states and 892 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) [2021-12-21 12:16:33,924 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 [] [2021-12-21 12:16:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:34,190 INFO L93 Difference]: Finished difference Result 1453 states and 2163 transitions. [2021-12-21 12:16:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:34,190 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 79 [2021-12-21 12:16:34,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:34,193 INFO L225 Difference]: With dead ends: 1453 [2021-12-21 12:16:34,193 INFO L226 Difference]: Without dead ends: 869 [2021-12-21 12:16:34,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:34,194 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 104 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:34,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 270 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 12:16:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2021-12-21 12:16:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 672. [2021-12-21 12:16:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 671 states have (on average 1.5081967213114753) internal successors, (1012), 671 states have internal predecessors, (1012), 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) [2021-12-21 12:16:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1012 transitions. [2021-12-21 12:16:34,208 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1012 transitions. Word has length 79 [2021-12-21 12:16:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:34,208 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 1012 transitions. [2021-12-21 12:16:34,209 INFO L471 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) [2021-12-21 12:16:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1012 transitions. [2021-12-21 12:16:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-21 12:16:34,210 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:34,210 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-12-21 12:16:34,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 12:16:34,210 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:34,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:34,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2061764687, now seen corresponding path program 1 times [2021-12-21 12:16:34,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:34,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690741873] [2021-12-21 12:16:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:34,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:34,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:34,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690741873] [2021-12-21 12:16:34,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690741873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:34,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:34,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:34,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040596827] [2021-12-21 12:16:34,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:34,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:34,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:34,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:34,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:34,315 INFO L87 Difference]: Start difference. First operand 672 states and 1012 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-12-21 12:16:36,330 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 [] [2021-12-21 12:16:38,341 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 [] [2021-12-21 12:16:38,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:38,515 INFO L93 Difference]: Finished difference Result 1471 states and 2201 transitions. [2021-12-21 12:16:38,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:38,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 80 [2021-12-21 12:16:38,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:38,517 INFO L225 Difference]: With dead ends: 1471 [2021-12-21 12:16:38,517 INFO L226 Difference]: Without dead ends: 809 [2021-12-21 12:16:38,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:38,519 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 39 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:38,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 496 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:38,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-12-21 12:16:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 738. [2021-12-21 12:16:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.5115332428765265) internal successors, (1114), 737 states have internal predecessors, (1114), 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) [2021-12-21 12:16:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1114 transitions. [2021-12-21 12:16:38,531 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1114 transitions. Word has length 80 [2021-12-21 12:16:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:38,532 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1114 transitions. [2021-12-21 12:16:38,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-12-21 12:16:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1114 transitions. [2021-12-21 12:16:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-21 12:16:38,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:38,533 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:16:38,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 12:16:38,533 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:38,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash 793593224, now seen corresponding path program 1 times [2021-12-21 12:16:38,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:38,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212443186] [2021-12-21 12:16:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:38,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:38,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:38,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212443186] [2021-12-21 12:16:38,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212443186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:38,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:38,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:38,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459150516] [2021-12-21 12:16:38,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:38,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:38,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:38,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:38,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:38,638 INFO L87 Difference]: Start difference. First operand 738 states and 1114 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-12-21 12:16:40,645 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 [] [2021-12-21 12:16:42,658 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 [] [2021-12-21 12:16:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:42,836 INFO L93 Difference]: Finished difference Result 1537 states and 2300 transitions. [2021-12-21 12:16:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 95 [2021-12-21 12:16:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:42,839 INFO L225 Difference]: With dead ends: 1537 [2021-12-21 12:16:42,839 INFO L226 Difference]: Without dead ends: 809 [2021-12-21 12:16:42,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:42,840 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 48 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 496 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 [2021-12-21 12:16:42,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 496 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:42,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-12-21 12:16:42,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 738. [2021-12-21 12:16:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.507462686567164) internal successors, (1111), 737 states have internal predecessors, (1111), 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) [2021-12-21 12:16:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1111 transitions. [2021-12-21 12:16:42,851 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1111 transitions. Word has length 95 [2021-12-21 12:16:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:42,851 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1111 transitions. [2021-12-21 12:16:42,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-12-21 12:16:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1111 transitions. [2021-12-21 12:16:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-21 12:16:42,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:42,853 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:16:42,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-21 12:16:42,853 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1231158467, now seen corresponding path program 1 times [2021-12-21 12:16:42,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:42,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228960227] [2021-12-21 12:16:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:42,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:42,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:42,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228960227] [2021-12-21 12:16:42,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228960227] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:42,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:42,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:42,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279798299] [2021-12-21 12:16:42,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:42,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:42,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:42,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:42,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:42,949 INFO L87 Difference]: Start difference. First operand 738 states and 1111 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) [2021-12-21 12:16:44,957 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 [] [2021-12-21 12:16:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:45,174 INFO L93 Difference]: Finished difference Result 1666 states and 2484 transitions. [2021-12-21 12:16:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:45,177 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 97 [2021-12-21 12:16:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:45,180 INFO L225 Difference]: With dead ends: 1666 [2021-12-21 12:16:45,180 INFO L226 Difference]: Without dead ends: 938 [2021-12-21 12:16:45,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:45,181 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 116 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:45,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 272 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 12:16:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2021-12-21 12:16:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 738. [2021-12-21 12:16:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.4871099050203527) internal successors, (1096), 737 states have internal predecessors, (1096), 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) [2021-12-21 12:16:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1096 transitions. [2021-12-21 12:16:45,196 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1096 transitions. Word has length 97 [2021-12-21 12:16:45,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:45,196 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1096 transitions. [2021-12-21 12:16:45,197 INFO L471 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) [2021-12-21 12:16:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1096 transitions. [2021-12-21 12:16:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-21 12:16:45,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:45,198 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2021-12-21 12:16:45,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-21 12:16:45,198 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1142724731, now seen corresponding path program 1 times [2021-12-21 12:16:45,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:45,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238072840] [2021-12-21 12:16:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:45,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:45,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:45,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238072840] [2021-12-21 12:16:45,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238072840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:45,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:45,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:45,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955978455] [2021-12-21 12:16:45,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:45,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:45,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:45,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:45,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:45,342 INFO L87 Difference]: Start difference. First operand 738 states and 1096 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) [2021-12-21 12:16:47,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:49,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 12:16:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:49,515 INFO L93 Difference]: Finished difference Result 1510 states and 2231 transitions. [2021-12-21 12:16:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:49,516 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 98 [2021-12-21 12:16:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:49,521 INFO L225 Difference]: With dead ends: 1510 [2021-12-21 12:16:49,521 INFO L226 Difference]: Without dead ends: 782 [2021-12-21 12:16:49,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:49,522 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:49,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 480 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 12:16:49,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-12-21 12:16:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 738. [2021-12-21 12:16:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.4830393487109905) internal successors, (1093), 737 states have internal predecessors, (1093), 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) [2021-12-21 12:16:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1093 transitions. [2021-12-21 12:16:49,536 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1093 transitions. Word has length 98 [2021-12-21 12:16:49,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:49,536 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1093 transitions. [2021-12-21 12:16:49,536 INFO L471 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) [2021-12-21 12:16:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1093 transitions. [2021-12-21 12:16:49,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-21 12:16:49,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:49,537 INFO L514 BasicCegarLoop]: 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] [2021-12-21 12:16:49,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-21 12:16:49,538 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:49,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:49,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1844388260, now seen corresponding path program 1 times [2021-12-21 12:16:49,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:49,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585497865] [2021-12-21 12:16:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:49,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-21 12:16:49,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:49,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585497865] [2021-12-21 12:16:49,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585497865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:49,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:49,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:16:49,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804232269] [2021-12-21 12:16:49,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:49,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:16:49,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:49,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:16:49,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:16:49,646 INFO L87 Difference]: Start difference. First operand 738 states and 1093 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-12-21 12:16:51,657 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 [] [2021-12-21 12:16:51,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:51,698 INFO L93 Difference]: Finished difference Result 1485 states and 2202 transitions. [2021-12-21 12:16:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:16:51,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 98 [2021-12-21 12:16:51,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:51,711 INFO L225 Difference]: With dead ends: 1485 [2021-12-21 12:16:51,711 INFO L226 Difference]: Without dead ends: 978 [2021-12-21 12:16:51,712 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:16:51,712 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:51,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 473 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 12:16:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-12-21 12:16:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 976. [2021-12-21 12:16:51,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 1.4820512820512821) internal successors, (1445), 975 states have internal predecessors, (1445), 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) [2021-12-21 12:16:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1445 transitions. [2021-12-21 12:16:51,731 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1445 transitions. Word has length 98 [2021-12-21 12:16:51,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:51,731 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1445 transitions. [2021-12-21 12:16:51,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-12-21 12:16:51,731 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1445 transitions. [2021-12-21 12:16:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-21 12:16:51,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:51,733 INFO L514 BasicCegarLoop]: 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] [2021-12-21 12:16:51,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-21 12:16:51,733 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1703839650, now seen corresponding path program 1 times [2021-12-21 12:16:51,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:51,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371033583] [2021-12-21 12:16:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:51,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-21 12:16:51,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:51,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371033583] [2021-12-21 12:16:51,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371033583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:51,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:51,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:16:51,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285818338] [2021-12-21 12:16:51,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:51,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:16:51,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:16:51,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:16:51,857 INFO L87 Difference]: Start difference. First operand 976 states and 1445 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2021-12-21 12:16:53,864 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 [] [2021-12-21 12:16:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:53,910 INFO L93 Difference]: Finished difference Result 1695 states and 2507 transitions. [2021-12-21 12:16:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:16:53,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 98 [2021-12-21 12:16:53,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:53,914 INFO L225 Difference]: With dead ends: 1695 [2021-12-21 12:16:53,914 INFO L226 Difference]: Without dead ends: 950 [2021-12-21 12:16:53,915 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:16:53,915 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 130 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:53,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 472 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 12:16:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2021-12-21 12:16:53,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 950. [2021-12-21 12:16:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 1.4741833508956796) internal successors, (1399), 949 states have internal predecessors, (1399), 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) [2021-12-21 12:16:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1399 transitions. [2021-12-21 12:16:53,930 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1399 transitions. Word has length 98 [2021-12-21 12:16:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:53,930 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 1399 transitions. [2021-12-21 12:16:53,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2021-12-21 12:16:53,930 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1399 transitions. [2021-12-21 12:16:53,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-21 12:16:53,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:53,932 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-12-21 12:16:53,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-21 12:16:53,932 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:53,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:53,932 INFO L85 PathProgramCache]: Analyzing trace with hash -741144714, now seen corresponding path program 1 times [2021-12-21 12:16:53,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:53,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140070456] [2021-12-21 12:16:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:53,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-21 12:16:54,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:54,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140070456] [2021-12-21 12:16:54,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140070456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:54,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:54,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:54,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195191613] [2021-12-21 12:16:54,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:54,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:54,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:54,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:54,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:54,044 INFO L87 Difference]: Start difference. First operand 950 states and 1399 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-21 12:16:56,064 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 [] [2021-12-21 12:16:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:56,302 INFO L93 Difference]: Finished difference Result 2150 states and 3137 transitions. [2021-12-21 12:16:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 101 [2021-12-21 12:16:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:56,306 INFO L225 Difference]: With dead ends: 2150 [2021-12-21 12:16:56,306 INFO L226 Difference]: Without dead ends: 1210 [2021-12-21 12:16:56,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:16:56,308 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 100 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:56,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 278 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 12:16:56,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2021-12-21 12:16:56,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 958. [2021-12-21 12:16:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 1.4743991640543366) internal successors, (1411), 957 states have internal predecessors, (1411), 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) [2021-12-21 12:16:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1411 transitions. [2021-12-21 12:16:56,329 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1411 transitions. Word has length 101 [2021-12-21 12:16:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:56,329 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 1411 transitions. [2021-12-21 12:16:56,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-21 12:16:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1411 transitions. [2021-12-21 12:16:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-21 12:16:56,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:56,331 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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] [2021-12-21 12:16:56,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-21 12:16:56,331 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:56,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1820752595, now seen corresponding path program 1 times [2021-12-21 12:16:56,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:56,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310505172] [2021-12-21 12:16:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:56,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:16:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-12-21 12:16:56,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:16:56,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310505172] [2021-12-21 12:16:56,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310505172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:16:56,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:16:56,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:16:56,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323886351] [2021-12-21 12:16:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:16:56,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:16:56,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:16:56,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:16:56,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:16:56,540 INFO L87 Difference]: Start difference. First operand 958 states and 1411 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-12-21 12:16:58,555 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 [] [2021-12-21 12:16:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:16:58,691 INFO L93 Difference]: Finished difference Result 1907 states and 2808 transitions. [2021-12-21 12:16:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:16:58,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 122 [2021-12-21 12:16:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:16:58,694 INFO L225 Difference]: With dead ends: 1907 [2021-12-21 12:16:58,694 INFO L226 Difference]: Without dead ends: 959 [2021-12-21 12:16:58,695 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:16:58,695 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 7 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 12:16:58,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 406 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 12:16:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-12-21 12:16:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 958. [2021-12-21 12:16:58,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 1.4733542319749215) internal successors, (1410), 957 states have internal predecessors, (1410), 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) [2021-12-21 12:16:58,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1410 transitions. [2021-12-21 12:16:58,710 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1410 transitions. Word has length 122 [2021-12-21 12:16:58,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:16:58,710 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 1410 transitions. [2021-12-21 12:16:58,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-12-21 12:16:58,710 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1410 transitions. [2021-12-21 12:16:58,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-21 12:16:58,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:16:58,712 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2021-12-21 12:16:58,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-21 12:16:58,712 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:16:58,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:16:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash -272550210, now seen corresponding path program 1 times [2021-12-21 12:16:58,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:16:58,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492786168] [2021-12-21 12:16:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:16:58,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:16:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:16:59,464 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 12:16:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:16:59,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 12:16:59,745 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 12:16:59,745 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 12:16:59,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-21 12:16:59,749 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:16:59,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 12:16:59,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:16:59 BoogieIcfgContainer [2021-12-21 12:16:59,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 12:16:59,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 12:16:59,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 12:16:59,889 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 12:16:59,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:15:56" (3/4) ... [2021-12-21 12:16:59,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 12:16:59,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 12:16:59,891 INFO L158 Benchmark]: Toolchain (without parser) took 66725.22ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 67.9MB in the beginning and 89.4MB in the end (delta: -21.5MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,892 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 56.3MB in the beginning and 56.2MB in the end (delta: 45.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.22ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 56.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.20ms. Allocated memory is still 98.6MB. Free memory was 56.2MB in the beginning and 51.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,892 INFO L158 Benchmark]: Boogie Preprocessor took 90.53ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 90.3MB in the end (delta: -38.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,894 INFO L158 Benchmark]: RCFGBuilder took 2947.60ms. Allocated memory is still 119.5MB. Free memory was 90.3MB in the beginning and 71.8MB in the end (delta: 18.5MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,894 INFO L158 Benchmark]: TraceAbstraction took 63085.39ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 70.9MB in the beginning and 90.4MB in the end (delta: -19.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2021-12-21 12:16:59,894 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 89.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:16:59,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 56.3MB in the beginning and 56.2MB in the end (delta: 45.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.22ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 56.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.20ms. Allocated memory is still 98.6MB. Free memory was 56.2MB in the beginning and 51.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.53ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 90.3MB in the end (delta: -38.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2947.60ms. Allocated memory is still 119.5MB. Free memory was 90.3MB in the beginning and 71.8MB in the end (delta: 18.5MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * TraceAbstraction took 63085.39ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 70.9MB in the beginning and 90.4MB in the end (delta: -19.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 89.4MB in the end (delta: 1.0MB). 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: 1658]: 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 1343. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={4:0}] [L1065] SSL *s ; [L1069] s = malloc (sizeof (SSL)) [L1070] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1071] EXPR s->s3 [L1071] s->s3->flags = __VERIFIER_nondet_long() [L1072] EXPR s->s3 [L1072] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1073] EXPR s->s3 [L1073] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1074] EXPR s->s3 [L1074] EXPR (s->s3)->tmp.new_cipher [L1074] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1075] EXPR s->s3 [L1075] s->s3->tmp.next_state = __VERIFIER_nondet_int() [L1076] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1077] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1078] s->ctx = malloc(sizeof(SSL_CTX)) [L1079] EXPR s->ctx [L1079] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1080] s->state = 12292 [L1081] s->version = __VERIFIER_nondet_int() [L1082] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1083] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1084] CALL ssl3_connect(s) [L1090] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1091] unsigned long tmp ; [L1092] unsigned long l ; [L1093] long num1 ; [L1094] void (*cb)() ; [L1095] int ret ; [L1096] int new_state ; [L1097] int state ; [L1098] int skip ; [L1099] int *tmp___0 ; [L1100] int tmp___1 = __VERIFIER_nondet_int(); [L1101] int tmp___2 = __VERIFIER_nondet_int(); [L1102] int tmp___3 ; [L1103] int tmp___4 ; [L1104] int tmp___5 ; [L1105] int tmp___6 ; [L1106] int tmp___7 ; [L1107] int tmp___8 ; [L1108] long tmp___9 ; [L1110] int blastFlag ; [L1113] blastFlag = 0 [L1114] s->state = 12292 [L1115] s->hit = __VERIFIER_nondet_int() [L1117] tmp = __VERIFIER_nondet_int() [L1118] cb = (void (*)())((void *)0) [L1119] ret = -1 [L1120] skip = 0 [L1121] tmp___0 = (int*)malloc(sizeof(int)) [L1122] *tmp___0 = 0 [L1123] EXPR s->info_callback VAL [={0:0}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->info_callback={0:-2147483648}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1123] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1124] EXPR s->info_callback [L1124] cb = s->info_callback [L1132] EXPR s->in_handshake [L1132] s->in_handshake += 1 [L1133] COND FALSE !(tmp___1 & 12288) VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=12292, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1146] COND TRUE s->state == 12292 [L1249] s->new_session = 1 [L1250] s->state = 4096 [L1251] EXPR s->ctx [L1251] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1251] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1256] s->server = 0 VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1257] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1262] EXPR s->version VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->version=6, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1262] COND FALSE !((s->version & 65280) != 768) [L1268] s->type = 4096 [L1269] EXPR s->init_buf VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->init_buf={0:-1}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0] [L1269] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1281] tmp___4 = __VERIFIER_nondet_int() [L1282] COND FALSE !(! tmp___4) [L1288] tmp___5 = __VERIFIER_nondet_int() [L1289] COND FALSE !(! tmp___5) [L1295] s->state = 4368 [L1296] EXPR s->ctx [L1296] EXPR (s->ctx)->stats.sess_connect [L1296] (s->ctx)->stats.sess_connect += 1 [L1297] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf={0:15}, init=1, ret=-1, s={-16:0}, s={-16:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1161] COND TRUE s->state == 4368 [L1301] s->shutdown = 0 [L1302] ret = __VERIFIER_nondet_int() [L1303] COND TRUE blastFlag == 0 [L1304] blastFlag = 1 VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1308] COND FALSE !(ret <= 0) [L1313] s->state = 4384 [L1314] s->init_num = 0 [L1315] EXPR s->bbio [L1315] EXPR s->wbio VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->bbio={0:17}, s->wbio={0:-9}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1315] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf={0:15}, init=1, ret=11, s={-16:0}, s={-16:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1167] COND TRUE s->state == 4384 [L1323] ret = __VERIFIER_nondet_int() [L1324] COND TRUE blastFlag == 1 [L1325] blastFlag = 2 VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1329] COND FALSE !(ret <= 0) [L1334] s->hit VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->hit=0, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1334] COND FALSE !(s->hit) [L1337] s->state = 4400 VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1339] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1173] COND TRUE s->state == 4400 [L1343] EXPR s->s3 [L1343] EXPR (s->s3)->tmp.new_cipher [L1343] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:-2147483648}, ((s->s3)->tmp.new_cipher)->algorithms=4294967319, (s->s3)->tmp.new_cipher={-10:0}, blastFlag=2, buf={0:15}, init=1, ret=19, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1343] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1346] ret = __VERIFIER_nondet_int() [L1347] COND TRUE blastFlag == 2 [L1348] blastFlag = 3 VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1352] COND FALSE !(ret <= 0) VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1358] s->state = 4416 [L1359] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=3, buf={0:15}, init=1, ret=22, s={-16:0}, s={-16:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1179] COND TRUE s->state == 4416 [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 3 [L1365] blastFlag = 4 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1] [L1369] COND FALSE !(ret <= 0) [L1374] s->state = 4432 [L1375] s->init_num = 0 [L1376] tmp___6 = __VERIFIER_nondet_int() [L1377] COND FALSE !(! tmp___6) VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1185] COND TRUE s->state == 4432 [L1386] ret = __VERIFIER_nondet_int() [L1387] COND FALSE !(blastFlag == 5) VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1392] COND FALSE !(ret <= 0) [L1397] s->state = 4448 [L1398] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->s3={-12:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1143] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1185] COND FALSE !(s->state == 4432) [L1188] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1188] COND FALSE !(s->state == 4433) [L1191] EXPR s->state VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=1, s={-16:0}, s={-16:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1191] COND TRUE s->state == 4448 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=-13, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] [L1658] reach_error() VAL [={0:-2147483648}, blastFlag=4, buf={0:15}, init=1, ret=-13, s={-16:0}, s={-16:0}, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___0={-11:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=1, tmp___6=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.9s, OverallIterations: 22, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 58.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 27 mSolverCounterUnknown, 1796 SdHoareTripleChecker+Valid, 57.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1796 mSDsluCounter, 8169 SdHoareTripleChecker+Invalid, 56.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4463 mSDsCounter, 424 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2881 IncrementalHoareTripleChecker+Invalid, 3332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 424 mSolverCounterUnsat, 3706 mSDtfsCounter, 2881 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=976occurred in iteration=18, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 1937 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1661 NumberOfCodeBlocks, 1661 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1503 ConstructedInterpolants, 0 QuantifiedInterpolants, 3445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 1288/1288 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 [2021-12-21 12:16:59,946 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/loops/s3.i -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 d053be7ac759c4172c4b0b5fbe009ed8f624c0c8659eb750e9996926d5d3b0a1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:17:01,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:17:01,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:17:01,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:17:01,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:17:01,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:17:01,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:17:01,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:17:01,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:17:01,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:17:01,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:17:01,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:17:01,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:17:01,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:17:01,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:17:01,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:17:01,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:17:01,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:17:01,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:17:01,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:17:01,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:17:01,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:17:01,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:17:01,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:17:01,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:17:01,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:17:01,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:17:01,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:17:01,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:17:01,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:17:01,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:17:01,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:17:01,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:17:01,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:17:01,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:17:01,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:17:01,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:17:01,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:17:01,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:17:01,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:17:01,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:17:01,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 12:17:01,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:17:01,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:17:01,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:17:01,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:17:01,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:17:01,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:17:01,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:17:01,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:17:01,760 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:17:01,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:17:01,761 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:17:01,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:17:01,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:17:01,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:17:01,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:17:01,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:17:01,767 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 12:17:01,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 12:17:01,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:17:01,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:17:01,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:17:01,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:17:01,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:17:01,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 12:17:01,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d053be7ac759c4172c4b0b5fbe009ed8f624c0c8659eb750e9996926d5d3b0a1 [2021-12-21 12:17:01,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:17:02,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:17:02,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:17:02,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:17:02,003 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:17:02,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/s3.i [2021-12-21 12:17:02,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb7639a5/ead4ad3a5b354652a1e97d4e64470fad/FLAG12a46f3ae [2021-12-21 12:17:02,510 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:17:02,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/s3.i [2021-12-21 12:17:02,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb7639a5/ead4ad3a5b354652a1e97d4e64470fad/FLAG12a46f3ae [2021-12-21 12:17:02,532 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb7639a5/ead4ad3a5b354652a1e97d4e64470fad [2021-12-21 12:17:02,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:17:02,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:17:02,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:17:02,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:17:02,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:17:02,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:17:02" (1/1) ... [2021-12-21 12:17:02,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffce40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:02, skipping insertion in model container [2021-12-21 12:17:02,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:17:02" (1/1) ... [2021-12-21 12:17:02,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:17:02,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:17:02,933 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/loops/s3.i[64167,64180] [2021-12-21 12:17:02,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:17:02,953 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-21 12:17:02,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:17:03,037 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/loops/s3.i[64167,64180] [2021-12-21 12:17:03,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:17:03,055 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:17:03,140 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/loops/s3.i[64167,64180] [2021-12-21 12:17:03,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:17:03,164 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:17:03,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03 WrapperNode [2021-12-21 12:17:03,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:17:03,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:17:03,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:17:03,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:17:03,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,272 INFO L137 Inliner]: procedures = 34, calls = 222, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 702 [2021-12-21 12:17:03,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:17:03,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:17:03,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:17:03,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:17:03,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:17:03,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:17:03,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:17:03,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:17:03,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:17:03" (1/1) ... [2021-12-21 12:17:03,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:17:03,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:17:03,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 12:17:03,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 12:17:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:17:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 12:17:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 12:17:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 12:17:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 12:17:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 12:17:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:17:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:17:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 12:17:03,596 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:17:03,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:17:03,606 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock.