./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 03:02:04,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 03:02:04,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 03:02:04,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 03:02:04,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 03:02:04,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 03:02:04,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 03:02:04,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 03:02:04,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 03:02:04,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 03:02:04,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 03:02:04,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 03:02:04,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 03:02:04,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 03:02:04,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 03:02:04,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 03:02:04,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 03:02:04,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 03:02:04,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 03:02:04,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 03:02:04,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 03:02:04,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 03:02:04,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 03:02:04,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 03:02:04,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 03:02:04,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 03:02:04,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 03:02:04,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 03:02:04,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 03:02:04,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 03:02:04,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 03:02:04,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 03:02:04,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 03:02:04,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 03:02:04,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 03:02:04,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 03:02:04,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 03:02:04,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 03:02:04,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 03:02:04,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 03:02:04,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 03:02:04,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 03:02:04,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 03:02:04,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 03:02:04,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 03:02:04,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 03:02:04,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 03:02:04,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 03:02:04,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 03:02:04,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 03:02:04,690 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 03:02:04,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 03:02:04,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 03:02:04,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 03:02:04,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 03:02:04,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 03:02:04,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 03:02:04,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 03:02:04,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 03:02:04,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:02:04,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 03:02:04,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 03:02:04,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 03:02:04,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 03:02:04,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 03:02:04,694 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 03:02:04,694 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 03:02:04,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 03:02:04,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 03:02:04,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 [2021-12-17 03:02:04,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 03:02:04,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 03:02:04,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 03:02:04,950 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 03:02:04,950 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 03:02:04,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-17 03:02:04,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c643568e/789e39a904044f2e9ee7d124de7b0050/FLAG95a900c66 [2021-12-17 03:02:05,391 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 03:02:05,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-17 03:02:05,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c643568e/789e39a904044f2e9ee7d124de7b0050/FLAG95a900c66 [2021-12-17 03:02:05,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c643568e/789e39a904044f2e9ee7d124de7b0050 [2021-12-17 03:02:05,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 03:02:05,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 03:02:05,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 03:02:05,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 03:02:05,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 03:02:05,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bbb37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05, skipping insertion in model container [2021-12-17 03:02:05,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 03:02:05,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:02:05,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-17 03:02:05,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:02:05,718 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 03:02:05,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-17 03:02:05,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:02:05,885 INFO L208 MainTranslator]: Completed translation [2021-12-17 03:02:05,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05 WrapperNode [2021-12-17 03:02:05,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 03:02:05,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 03:02:05,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 03:02:05,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 03:02:05,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,963 INFO L137 Inliner]: procedures = 31, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 718 [2021-12-17 03:02:05,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 03:02:05,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 03:02:05,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 03:02:05,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 03:02:05,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:05,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:06,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:06,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:06,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:06,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 03:02:06,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 03:02:06,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 03:02:06,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 03:02:06,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (1/1) ... [2021-12-17 03:02:06,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:02:06,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:02:06,071 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) [2021-12-17 03:02:06,076 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 [2021-12-17 03:02:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 03:02:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 03:02:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 03:02:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 03:02:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 03:02:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 03:02:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 03:02:06,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 03:02:06,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 03:02:06,211 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 03:02:06,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 03:02:06,222 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-17 03:02:08,935 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-17 03:02:08,936 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-17 03:02:08,936 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 03:02:08,941 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 03:02:08,941 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 03:02:08,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:02:08 BoogieIcfgContainer [2021-12-17 03:02:08,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 03:02:08,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 03:02:08,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 03:02:08,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 03:02:08,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:02:05" (1/3) ... [2021-12-17 03:02:08,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e3c948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:02:08, skipping insertion in model container [2021-12-17 03:02:08,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:02:05" (2/3) ... [2021-12-17 03:02:08,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e3c948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:02:08, skipping insertion in model container [2021-12-17 03:02:08,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:02:08" (3/3) ... [2021-12-17 03:02:08,948 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2021-12-17 03:02:08,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 03:02:08,952 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 03:02:08,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 03:02:08,986 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 [2021-12-17 03:02:08,987 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 03:02:09,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 03:02:09,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:09,017 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] [2021-12-17 03:02:09,018 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:09,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:09,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-12-17 03:02:09,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:09,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829597361] [2021-12-17 03:02:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:09,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:02:09,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:09,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829597361] [2021-12-17 03:02:09,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829597361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:09,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:09,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:09,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824099027] [2021-12-17 03:02:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:09,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:09,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:09,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:09,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:09,623 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:11,654 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 [] [2021-12-17 03:02:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:11,947 INFO L93 Difference]: Finished difference Result 360 states and 608 transitions. [2021-12-17 03:02:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-17 03:02:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:11,957 INFO L225 Difference]: With dead ends: 360 [2021-12-17 03:02:11,957 INFO L226 Difference]: Without dead ends: 205 [2021-12-17 03:02:11,960 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 [2021-12-17 03:02:11,981 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 143 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:11,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 378 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 03:02:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-17 03:02:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 136. [2021-12-17 03:02:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.5629629629629629) internal successors, (211), 135 states have internal predecessors, (211), 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) [2021-12-17 03:02:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 211 transitions. [2021-12-17 03:02:12,026 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 211 transitions. Word has length 24 [2021-12-17 03:02:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:12,026 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 211 transitions. [2021-12-17 03:02:12,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:12,026 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 211 transitions. [2021-12-17 03:02:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 03:02:12,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:12,027 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, 1] [2021-12-17 03:02:12,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 03:02:12,028 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:12,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2051408280, now seen corresponding path program 1 times [2021-12-17 03:02:12,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:12,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963838387] [2021-12-17 03:02:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:12,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:02:12,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:12,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963838387] [2021-12-17 03:02:12,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963838387] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:12,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:12,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:12,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128816051] [2021-12-17 03:02:12,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:12,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:12,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:12,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:12,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:12,233 INFO L87 Difference]: Start difference. First operand 136 states and 211 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-17 03:02:14,248 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 [] [2021-12-17 03:02:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:14,413 INFO L93 Difference]: Finished difference Result 269 states and 416 transitions. [2021-12-17 03:02:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:14,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-12-17 03:02:14,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:14,415 INFO L225 Difference]: With dead ends: 269 [2021-12-17 03:02:14,415 INFO L226 Difference]: Without dead ends: 140 [2021-12-17 03:02:14,416 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 [2021-12-17 03:02:14,417 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 7 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 403 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 [2021-12-17 03:02:14,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 403 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:02:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-12-17 03:02:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2021-12-17 03:02:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.5507246376811594) internal successors, (214), 138 states have internal predecessors, (214), 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) [2021-12-17 03:02:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 214 transitions. [2021-12-17 03:02:14,424 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 214 transitions. Word has length 25 [2021-12-17 03:02:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:14,424 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 214 transitions. [2021-12-17 03:02:14,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-17 03:02:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 214 transitions. [2021-12-17 03:02:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-17 03:02:14,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:14,425 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:14,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 03:02:14,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:14,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:14,426 INFO L85 PathProgramCache]: Analyzing trace with hash 992174912, now seen corresponding path program 1 times [2021-12-17 03:02:14,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:14,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623615807] [2021-12-17 03:02:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:14,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 03:02:14,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:14,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623615807] [2021-12-17 03:02:14,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623615807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:14,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:14,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:02:14,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786452870] [2021-12-17 03:02:14,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:14,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:02:14,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:14,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:02:14,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:02:14,581 INFO L87 Difference]: Start difference. First operand 139 states and 214 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-12-17 03:02:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:14,602 INFO L93 Difference]: Finished difference Result 393 states and 610 transitions. [2021-12-17 03:02:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:02:14,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 [2021-12-17 03:02:14,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:14,604 INFO L225 Difference]: With dead ends: 393 [2021-12-17 03:02:14,604 INFO L226 Difference]: Without dead ends: 264 [2021-12-17 03:02:14,605 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 [2021-12-17 03:02:14,605 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 123 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:14,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 310 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 03:02:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-12-17 03:02:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2021-12-17 03:02:14,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.5361216730038023) internal successors, (404), 263 states have internal predecessors, (404), 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) [2021-12-17 03:02:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 404 transitions. [2021-12-17 03:02:14,615 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 404 transitions. Word has length 39 [2021-12-17 03:02:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:14,615 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 404 transitions. [2021-12-17 03:02:14,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-12-17 03:02:14,616 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 404 transitions. [2021-12-17 03:02:14,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-17 03:02:14,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:14,617 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] [2021-12-17 03:02:14,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 03:02:14,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:14,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:14,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1329740792, now seen corresponding path program 1 times [2021-12-17 03:02:14,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:14,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672074336] [2021-12-17 03:02:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:14,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 03:02:14,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:14,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672074336] [2021-12-17 03:02:14,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672074336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:14,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:14,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:02:14,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105280973] [2021-12-17 03:02:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:14,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:02:14,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:02:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:02:14,773 INFO L87 Difference]: Start difference. First operand 264 states and 404 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-12-17 03:02:16,787 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 [] [2021-12-17 03:02:16,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:16,824 INFO L93 Difference]: Finished difference Result 516 states and 797 transitions. [2021-12-17 03:02:16,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:02:16,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 54 [2021-12-17 03:02:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:16,826 INFO L225 Difference]: With dead ends: 516 [2021-12-17 03:02:16,826 INFO L226 Difference]: Without dead ends: 387 [2021-12-17 03:02:16,826 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 [2021-12-17 03:02:16,827 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 122 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:16,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 461 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 03:02:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-12-17 03:02:16,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2021-12-17 03:02:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.5336787564766838) internal successors, (592), 386 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 592 transitions. [2021-12-17 03:02:16,837 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 592 transitions. Word has length 54 [2021-12-17 03:02:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:16,838 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 592 transitions. [2021-12-17 03:02:16,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-12-17 03:02:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 592 transitions. [2021-12-17 03:02:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-17 03:02:16,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:16,840 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:16,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 03:02:16,841 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:16,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:16,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2025585655, now seen corresponding path program 1 times [2021-12-17 03:02:16,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:16,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721142276] [2021-12-17 03:02:16,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:16,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:02:16,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:16,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721142276] [2021-12-17 03:02:16,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721142276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:16,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:16,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:16,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654128769] [2021-12-17 03:02:16,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:16,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:16,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:16,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:16,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:16,984 INFO L87 Difference]: Start difference. First operand 387 states and 592 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:18,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:02:21,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:02:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:21,295 INFO L93 Difference]: Finished difference Result 942 states and 1439 transitions. [2021-12-17 03:02:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-17 03:02:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:21,298 INFO L225 Difference]: With dead ends: 942 [2021-12-17 03:02:21,298 INFO L226 Difference]: Without dead ends: 565 [2021-12-17 03:02:21,298 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 [2021-12-17 03:02:21,299 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 91 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:21,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 550 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 03:02:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2021-12-17 03:02:21,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 439. [2021-12-17 03:02:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.552511415525114) internal successors, (680), 438 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 680 transitions. [2021-12-17 03:02:21,321 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 680 transitions. Word has length 72 [2021-12-17 03:02:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:21,322 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 680 transitions. [2021-12-17 03:02:21,322 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) [2021-12-17 03:02:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 680 transitions. [2021-12-17 03:02:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-17 03:02:21,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:21,324 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:21,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 03:02:21,324 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:21,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:21,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1885037045, now seen corresponding path program 1 times [2021-12-17 03:02:21,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:21,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217817513] [2021-12-17 03:02:21,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:21,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:02:21,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:21,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217817513] [2021-12-17 03:02:21,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217817513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:21,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:21,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:21,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726106225] [2021-12-17 03:02:21,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:21,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:21,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:21,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:21,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:21,450 INFO L87 Difference]: Start difference. First operand 439 states and 680 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:23,463 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 [] [2021-12-17 03:02:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:23,720 INFO L93 Difference]: Finished difference Result 1139 states and 1753 transitions. [2021-12-17 03:02:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:23,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-17 03:02:23,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:23,725 INFO L225 Difference]: With dead ends: 1139 [2021-12-17 03:02:23,725 INFO L226 Difference]: Without dead ends: 710 [2021-12-17 03:02:23,725 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 [2021-12-17 03:02:23,726 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 107 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:23,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:02:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2021-12-17 03:02:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 462. [2021-12-17 03:02:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.5704989154013016) internal successors, (724), 461 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:23,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 724 transitions. [2021-12-17 03:02:23,740 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 724 transitions. Word has length 72 [2021-12-17 03:02:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:23,741 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 724 transitions. [2021-12-17 03:02:23,742 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) [2021-12-17 03:02:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 724 transitions. [2021-12-17 03:02:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-17 03:02:23,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:23,743 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:23,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 03:02:23,743 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:23,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:23,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1523957901, now seen corresponding path program 1 times [2021-12-17 03:02:23,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:23,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582237267] [2021-12-17 03:02:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:23,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:02:23,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:23,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582237267] [2021-12-17 03:02:23,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582237267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:23,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:23,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:23,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908254921] [2021-12-17 03:02:23,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:23,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:23,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:23,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:23,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:23,920 INFO L87 Difference]: Start difference. First operand 462 states and 724 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:25,935 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 [] [2021-12-17 03:02:27,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:02:28,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:28,219 INFO L93 Difference]: Finished difference Result 1092 states and 1701 transitions. [2021-12-17 03:02:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:28,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-17 03:02:28,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:28,221 INFO L225 Difference]: With dead ends: 1092 [2021-12-17 03:02:28,221 INFO L226 Difference]: Without dead ends: 640 [2021-12-17 03:02:28,222 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 [2021-12-17 03:02:28,223 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 93 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:28,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 550 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 03:02:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-12-17 03:02:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 508. [2021-12-17 03:02:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 507 states have (on average 1.581854043392505) internal successors, (802), 507 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:28,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 802 transitions. [2021-12-17 03:02:28,233 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 802 transitions. Word has length 92 [2021-12-17 03:02:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:28,233 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 802 transitions. [2021-12-17 03:02:28,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:28,233 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 802 transitions. [2021-12-17 03:02:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-17 03:02:28,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:28,234 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:28,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 03:02:28,235 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:28,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:28,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1877523057, now seen corresponding path program 1 times [2021-12-17 03:02:28,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:28,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148657467] [2021-12-17 03:02:28,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:28,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-17 03:02:28,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:28,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148657467] [2021-12-17 03:02:28,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148657467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:28,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:28,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:28,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290812885] [2021-12-17 03:02:28,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:28,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:28,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:28,400 INFO L87 Difference]: Start difference. First operand 508 states and 802 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:30,415 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 [] [2021-12-17 03:02:32,432 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 [] [2021-12-17 03:02:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:32,611 INFO L93 Difference]: Finished difference Result 1092 states and 1718 transitions. [2021-12-17 03:02:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:32,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-17 03:02:32,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:32,613 INFO L225 Difference]: With dead ends: 1092 [2021-12-17 03:02:32,613 INFO L226 Difference]: Without dead ends: 594 [2021-12-17 03:02:32,614 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 [2021-12-17 03:02:32,615 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 40 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:32,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 494 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:02:32,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-12-17 03:02:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 548. [2021-12-17 03:02:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 547 states have (on average 1.5904936014625228) internal successors, (870), 547 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 870 transitions. [2021-12-17 03:02:32,625 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 870 transitions. Word has length 92 [2021-12-17 03:02:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:32,625 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 870 transitions. [2021-12-17 03:02:32,625 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) [2021-12-17 03:02:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 870 transitions. [2021-12-17 03:02:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-17 03:02:32,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:32,627 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:32,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 03:02:32,627 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash 377535094, now seen corresponding path program 1 times [2021-12-17 03:02:32,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:32,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117504050] [2021-12-17 03:02:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:32,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:02:32,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:32,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117504050] [2021-12-17 03:02:32,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117504050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:32,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:32,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:32,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286277977] [2021-12-17 03:02:32,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:32,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:32,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:32,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:32,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:32,768 INFO L87 Difference]: Start difference. First operand 548 states and 870 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:34,786 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 [] [2021-12-17 03:02:36,804 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 [] [2021-12-17 03:02:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:37,085 INFO L93 Difference]: Finished difference Result 1212 states and 1906 transitions. [2021-12-17 03:02:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-17 03:02:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:37,087 INFO L225 Difference]: With dead ends: 1212 [2021-12-17 03:02:37,087 INFO L226 Difference]: Without dead ends: 674 [2021-12-17 03:02:37,088 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 [2021-12-17 03:02:37,090 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 88 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:37,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 542 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 03:02:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-12-17 03:02:37,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 550. [2021-12-17 03:02:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.5883424408014573) internal successors, (872), 549 states have internal predecessors, (872), 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) [2021-12-17 03:02:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 872 transitions. [2021-12-17 03:02:37,100 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 872 transitions. Word has length 93 [2021-12-17 03:02:37,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:37,100 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 872 transitions. [2021-12-17 03:02:37,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 872 transitions. [2021-12-17 03:02:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 03:02:37,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:37,101 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:37,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 03:02:37,102 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1171686517, now seen corresponding path program 2 times [2021-12-17 03:02:37,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:37,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749024206] [2021-12-17 03:02:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:37,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:02:37,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:37,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749024206] [2021-12-17 03:02:37,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749024206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:37,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:37,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:37,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962477319] [2021-12-17 03:02:37,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:37,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:37,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:37,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:37,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:37,272 INFO L87 Difference]: Start difference. First operand 550 states and 872 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) [2021-12-17 03:02:39,281 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 [] [2021-12-17 03:02:41,302 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 [] [2021-12-17 03:02:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:41,538 INFO L93 Difference]: Finished difference Result 1283 states and 1999 transitions. [2021-12-17 03:02:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-17 03:02:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:41,541 INFO L225 Difference]: With dead ends: 1283 [2021-12-17 03:02:41,541 INFO L226 Difference]: Without dead ends: 743 [2021-12-17 03:02:41,541 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 [2021-12-17 03:02:41,542 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 112 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:41,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 282 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 203 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:02:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-12-17 03:02:41,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 550. [2021-12-17 03:02:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.570127504553734) internal successors, (862), 549 states have internal predecessors, (862), 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) [2021-12-17 03:02:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 862 transitions. [2021-12-17 03:02:41,553 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 862 transitions. Word has length 106 [2021-12-17 03:02:41,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:41,553 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 862 transitions. [2021-12-17 03:02:41,553 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) [2021-12-17 03:02:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 862 transitions. [2021-12-17 03:02:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 03:02:41,554 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:41,554 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:41,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 03:02:41,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1788158099, now seen corresponding path program 1 times [2021-12-17 03:02:41,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:41,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356817398] [2021-12-17 03:02:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:41,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:02:41,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:41,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356817398] [2021-12-17 03:02:41,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356817398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:41,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:41,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:41,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407049003] [2021-12-17 03:02:41,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:41,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:41,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:41,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:41,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:41,749 INFO L87 Difference]: Start difference. First operand 550 states and 862 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) [2021-12-17 03:02:43,756 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 [] [2021-12-17 03:02:45,774 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 [] [2021-12-17 03:02:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:46,004 INFO L93 Difference]: Finished difference Result 1212 states and 1884 transitions. [2021-12-17 03:02:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:46,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-17 03:02:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:46,006 INFO L225 Difference]: With dead ends: 1212 [2021-12-17 03:02:46,006 INFO L226 Difference]: Without dead ends: 672 [2021-12-17 03:02:46,007 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 [2021-12-17 03:02:46,008 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 97 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:46,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 538 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:02:46,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-12-17 03:02:46,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 550. [2021-12-17 03:02:46,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.5664845173041895) internal successors, (860), 549 states have internal predecessors, (860), 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) [2021-12-17 03:02:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 860 transitions. [2021-12-17 03:02:46,019 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 860 transitions. Word has length 106 [2021-12-17 03:02:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:46,019 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 860 transitions. [2021-12-17 03:02:46,019 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) [2021-12-17 03:02:46,019 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 860 transitions. [2021-12-17 03:02:46,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 03:02:46,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:46,022 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:46,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 03:02:46,023 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:46,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1946109419, now seen corresponding path program 1 times [2021-12-17 03:02:46,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:46,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458795467] [2021-12-17 03:02:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:46,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:02:46,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:46,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458795467] [2021-12-17 03:02:46,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458795467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:46,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:46,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:46,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219754870] [2021-12-17 03:02:46,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:46,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:46,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:46,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:46,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:46,197 INFO L87 Difference]: Start difference. First operand 550 states and 860 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) [2021-12-17 03:02:48,211 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 [] [2021-12-17 03:02:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:48,440 INFO L93 Difference]: Finished difference Result 1284 states and 1976 transitions. [2021-12-17 03:02:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-17 03:02:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:48,443 INFO L225 Difference]: With dead ends: 1284 [2021-12-17 03:02:48,443 INFO L226 Difference]: Without dead ends: 744 [2021-12-17 03:02:48,444 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 [2021-12-17 03:02:48,444 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 119 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:48,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:02:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-17 03:02:48,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 550. [2021-12-17 03:02:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.5519125683060109) internal successors, (852), 549 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 852 transitions. [2021-12-17 03:02:48,454 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 852 transitions. Word has length 106 [2021-12-17 03:02:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:48,455 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 852 transitions. [2021-12-17 03:02:48,455 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) [2021-12-17 03:02:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 852 transitions. [2021-12-17 03:02:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 03:02:48,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:48,456 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:48,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 03:02:48,457 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:48,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1275446372, now seen corresponding path program 1 times [2021-12-17 03:02:48,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:48,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991206971] [2021-12-17 03:02:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:48,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:02:48,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:48,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991206971] [2021-12-17 03:02:48,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991206971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:48,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:48,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:48,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660044555] [2021-12-17 03:02:48,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:48,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:48,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:48,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:48,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:48,588 INFO L87 Difference]: Start difference. First operand 550 states and 852 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) [2021-12-17 03:02:50,596 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 [] [2021-12-17 03:02:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:50,850 INFO L93 Difference]: Finished difference Result 1284 states and 1960 transitions. [2021-12-17 03:02:50,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:50,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 03:02:50,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:50,853 INFO L225 Difference]: With dead ends: 1284 [2021-12-17 03:02:50,853 INFO L226 Difference]: Without dead ends: 744 [2021-12-17 03:02:50,854 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 [2021-12-17 03:02:50,854 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:50,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 286 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:02:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-17 03:02:50,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 550. [2021-12-17 03:02:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.5336976320582878) internal successors, (842), 549 states have internal predecessors, (842), 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) [2021-12-17 03:02:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 842 transitions. [2021-12-17 03:02:50,864 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 842 transitions. Word has length 107 [2021-12-17 03:02:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:50,865 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 842 transitions. [2021-12-17 03:02:50,865 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) [2021-12-17 03:02:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 842 transitions. [2021-12-17 03:02:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 03:02:50,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:50,866 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:50,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 03:02:50,867 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:50,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:50,867 INFO L85 PathProgramCache]: Analyzing trace with hash 889473249, now seen corresponding path program 1 times [2021-12-17 03:02:50,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:50,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593640090] [2021-12-17 03:02:50,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:50,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:02:50,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:50,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593640090] [2021-12-17 03:02:50,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593640090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:50,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:50,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:50,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694516559] [2021-12-17 03:02:50,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:50,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:50,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:50,994 INFO L87 Difference]: Start difference. First operand 550 states and 842 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) [2021-12-17 03:02:53,001 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 [] [2021-12-17 03:02:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:53,223 INFO L93 Difference]: Finished difference Result 1167 states and 1766 transitions. [2021-12-17 03:02:53,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:53,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 03:02:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:53,225 INFO L225 Difference]: With dead ends: 1167 [2021-12-17 03:02:53,225 INFO L226 Difference]: Without dead ends: 819 [2021-12-17 03:02:53,226 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 [2021-12-17 03:02:53,226 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 113 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:53,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 492 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:02:53,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2021-12-17 03:02:53,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 598. [2021-12-17 03:02:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 1.5142378559463987) internal successors, (904), 597 states have internal predecessors, (904), 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) [2021-12-17 03:02:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 904 transitions. [2021-12-17 03:02:53,239 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 904 transitions. Word has length 107 [2021-12-17 03:02:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:53,239 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 904 transitions. [2021-12-17 03:02:53,239 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) [2021-12-17 03:02:53,239 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 904 transitions. [2021-12-17 03:02:53,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 03:02:53,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:53,241 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:53,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 03:02:53,241 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:53,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2005302672, now seen corresponding path program 1 times [2021-12-17 03:02:53,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:53,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932708702] [2021-12-17 03:02:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:53,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:02:53,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:53,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932708702] [2021-12-17 03:02:53,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932708702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:53,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:53,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:53,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045688746] [2021-12-17 03:02:53,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:53,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:53,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:53,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:53,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:53,388 INFO L87 Difference]: Start difference. First operand 598 states and 904 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:55,395 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 [] [2021-12-17 03:02:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:02:55,636 INFO L93 Difference]: Finished difference Result 1461 states and 2187 transitions. [2021-12-17 03:02:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:02:55,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-17 03:02:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:02:55,639 INFO L225 Difference]: With dead ends: 1461 [2021-12-17 03:02:55,640 INFO L226 Difference]: Without dead ends: 873 [2021-12-17 03:02:55,640 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 [2021-12-17 03:02:55,641 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 93 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:02:55,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 266 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:02:55,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2021-12-17 03:02:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 712. [2021-12-17 03:02:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 1.5330520393811533) internal successors, (1090), 711 states have internal predecessors, (1090), 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) [2021-12-17 03:02:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1090 transitions. [2021-12-17 03:02:55,655 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1090 transitions. Word has length 107 [2021-12-17 03:02:55,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:02:55,655 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 1090 transitions. [2021-12-17 03:02:55,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:55,655 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1090 transitions. [2021-12-17 03:02:55,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 03:02:55,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:02:55,657 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:02:55,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 03:02:55,657 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:02:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:02:55,657 INFO L85 PathProgramCache]: Analyzing trace with hash -386918792, now seen corresponding path program 1 times [2021-12-17 03:02:55,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:02:55,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066637875] [2021-12-17 03:02:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:02:55,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:02:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:02:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:02:55,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:02:55,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066637875] [2021-12-17 03:02:55,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066637875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:02:55,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:02:55,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:02:55,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148180893] [2021-12-17 03:02:55,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:02:55,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:02:55,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:02:55,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:02:55,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:02:55,816 INFO L87 Difference]: Start difference. First operand 712 states and 1090 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:02:57,823 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 [] [2021-12-17 03:02:59,844 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 [] [2021-12-17 03:03:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:00,079 INFO L93 Difference]: Finished difference Result 1536 states and 2338 transitions. [2021-12-17 03:03:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:00,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 03:03:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:00,082 INFO L225 Difference]: With dead ends: 1536 [2021-12-17 03:03:00,082 INFO L226 Difference]: Without dead ends: 834 [2021-12-17 03:03:00,083 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 [2021-12-17 03:03:00,083 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 91 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:00,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 530 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-12-17 03:03:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 712. [2021-12-17 03:03:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 1.530239099859353) internal successors, (1088), 711 states have internal predecessors, (1088), 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) [2021-12-17 03:03:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1088 transitions. [2021-12-17 03:03:00,098 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1088 transitions. Word has length 108 [2021-12-17 03:03:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:00,098 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 1088 transitions. [2021-12-17 03:03:00,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1088 transitions. [2021-12-17 03:03:00,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 03:03:00,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:00,100 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:00,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 03:03:00,100 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:00,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:00,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1089441208, now seen corresponding path program 1 times [2021-12-17 03:03:00,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:00,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322869581] [2021-12-17 03:03:00,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:00,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:03:00,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:00,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322869581] [2021-12-17 03:03:00,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322869581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:00,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:00,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:00,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138961210] [2021-12-17 03:03:00,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:00,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:00,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:00,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:00,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:00,284 INFO L87 Difference]: Start difference. First operand 712 states and 1088 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:02,291 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 [] [2021-12-17 03:03:04,312 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 [] [2021-12-17 03:03:04,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:04,545 INFO L93 Difference]: Finished difference Result 1284 states and 1952 transitions. [2021-12-17 03:03:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:04,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 03:03:04,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:04,547 INFO L225 Difference]: With dead ends: 1284 [2021-12-17 03:03:04,547 INFO L226 Difference]: Without dead ends: 828 [2021-12-17 03:03:04,548 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 [2021-12-17 03:03:04,548 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 85 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:04,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 524 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 223 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:04,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2021-12-17 03:03:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 712. [2021-12-17 03:03:04,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 1.5274261603375527) internal successors, (1086), 711 states have internal predecessors, (1086), 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) [2021-12-17 03:03:04,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1086 transitions. [2021-12-17 03:03:04,560 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1086 transitions. Word has length 108 [2021-12-17 03:03:04,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:04,560 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 1086 transitions. [2021-12-17 03:03:04,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:04,560 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1086 transitions. [2021-12-17 03:03:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 03:03:04,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:04,562 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:04,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 03:03:04,562 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:04,562 INFO L85 PathProgramCache]: Analyzing trace with hash 546201863, now seen corresponding path program 1 times [2021-12-17 03:03:04,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:04,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175116505] [2021-12-17 03:03:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:04,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:03:04,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:04,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175116505] [2021-12-17 03:03:04,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175116505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:04,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:04,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:04,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471019310] [2021-12-17 03:03:04,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:04,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:04,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:04,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:04,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:04,685 INFO L87 Difference]: Start difference. First operand 712 states and 1086 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:06,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:03:08,713 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 [] [2021-12-17 03:03:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:08,952 INFO L93 Difference]: Finished difference Result 1526 states and 2319 transitions. [2021-12-17 03:03:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:08,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 03:03:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:08,955 INFO L225 Difference]: With dead ends: 1526 [2021-12-17 03:03:08,955 INFO L226 Difference]: Without dead ends: 824 [2021-12-17 03:03:08,956 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 [2021-12-17 03:03:08,956 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 63 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:08,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 520 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 220 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-12-17 03:03:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 740. [2021-12-17 03:03:08,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 1.5345060893098783) internal successors, (1134), 739 states have internal predecessors, (1134), 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) [2021-12-17 03:03:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1134 transitions. [2021-12-17 03:03:08,967 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1134 transitions. Word has length 108 [2021-12-17 03:03:08,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:08,968 INFO L470 AbstractCegarLoop]: Abstraction has 740 states and 1134 transitions. [2021-12-17 03:03:08,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:08,968 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1134 transitions. [2021-12-17 03:03:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 03:03:08,969 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:08,969 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:08,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 03:03:08,970 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:08,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:08,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1432649300, now seen corresponding path program 1 times [2021-12-17 03:03:08,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:08,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327980695] [2021-12-17 03:03:08,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:08,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:03:09,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:09,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327980695] [2021-12-17 03:03:09,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327980695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:09,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:09,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:09,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77657807] [2021-12-17 03:03:09,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:09,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:09,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:09,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:09,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:09,091 INFO L87 Difference]: Start difference. First operand 740 states and 1134 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:11,098 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 [] [2021-12-17 03:03:13,117 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 [] [2021-12-17 03:03:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:13,355 INFO L93 Difference]: Finished difference Result 1554 states and 2365 transitions. [2021-12-17 03:03:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:13,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 03:03:13,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:13,358 INFO L225 Difference]: With dead ends: 1554 [2021-12-17 03:03:13,358 INFO L226 Difference]: Without dead ends: 824 [2021-12-17 03:03:13,360 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 [2021-12-17 03:03:13,361 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 61 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:13,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 518 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 220 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:13,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-12-17 03:03:13,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 742. [2021-12-17 03:03:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.53306342780027) internal successors, (1136), 741 states have internal predecessors, (1136), 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) [2021-12-17 03:03:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1136 transitions. [2021-12-17 03:03:13,373 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1136 transitions. Word has length 108 [2021-12-17 03:03:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:13,373 INFO L470 AbstractCegarLoop]: Abstraction has 742 states and 1136 transitions. [2021-12-17 03:03:13,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:13,373 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1136 transitions. [2021-12-17 03:03:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 03:03:13,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:13,374 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:13,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 03:03:13,375 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1574655866, now seen corresponding path program 1 times [2021-12-17 03:03:13,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:13,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410969161] [2021-12-17 03:03:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:13,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:03:13,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:13,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410969161] [2021-12-17 03:03:13,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410969161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:13,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:13,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:13,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088753640] [2021-12-17 03:03:13,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:13,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:13,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:13,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:13,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:13,494 INFO L87 Difference]: Start difference. First operand 742 states and 1136 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:15,501 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 [] [2021-12-17 03:03:17,522 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 [] [2021-12-17 03:03:17,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:17,711 INFO L93 Difference]: Finished difference Result 1518 states and 2314 transitions. [2021-12-17 03:03:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:17,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 03:03:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:17,714 INFO L225 Difference]: With dead ends: 1518 [2021-12-17 03:03:17,714 INFO L226 Difference]: Without dead ends: 786 [2021-12-17 03:03:17,715 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 [2021-12-17 03:03:17,716 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 41 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:17,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 486 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-12-17 03:03:17,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 742. [2021-12-17 03:03:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.5303643724696356) internal successors, (1134), 741 states have internal predecessors, (1134), 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) [2021-12-17 03:03:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1134 transitions. [2021-12-17 03:03:17,731 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1134 transitions. Word has length 108 [2021-12-17 03:03:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:17,732 INFO L470 AbstractCegarLoop]: Abstraction has 742 states and 1134 transitions. [2021-12-17 03:03:17,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1134 transitions. [2021-12-17 03:03:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 03:03:17,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:17,733 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:17,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 03:03:17,734 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:17,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:17,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1243951430, now seen corresponding path program 1 times [2021-12-17 03:03:17,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:17,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484183712] [2021-12-17 03:03:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:17,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:03:17,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:17,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484183712] [2021-12-17 03:03:17,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484183712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:17,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:17,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:17,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525907223] [2021-12-17 03:03:17,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:17,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:17,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:17,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:17,878 INFO L87 Difference]: Start difference. First operand 742 states and 1134 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:19,886 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 [] [2021-12-17 03:03:21,905 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 [] [2021-12-17 03:03:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:22,074 INFO L93 Difference]: Finished difference Result 1251 states and 1905 transitions. [2021-12-17 03:03:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:22,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-17 03:03:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:22,076 INFO L225 Difference]: With dead ends: 1251 [2021-12-17 03:03:22,076 INFO L226 Difference]: Without dead ends: 780 [2021-12-17 03:03:22,078 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 [2021-12-17 03:03:22,079 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 35 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:22,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 480 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-12-17 03:03:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 742. [2021-12-17 03:03:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.5276653171390013) internal successors, (1132), 741 states have internal predecessors, (1132), 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) [2021-12-17 03:03:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1132 transitions. [2021-12-17 03:03:22,117 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1132 transitions. Word has length 108 [2021-12-17 03:03:22,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:22,118 INFO L470 AbstractCegarLoop]: Abstraction has 742 states and 1132 transitions. [2021-12-17 03:03:22,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:22,118 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1132 transitions. [2021-12-17 03:03:22,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 03:03:22,122 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:22,122 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:22,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 03:03:22,123 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1536349215, now seen corresponding path program 1 times [2021-12-17 03:03:22,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:22,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065561619] [2021-12-17 03:03:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:22,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:03:22,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:22,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065561619] [2021-12-17 03:03:22,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065561619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:22,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:22,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:22,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933444177] [2021-12-17 03:03:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:22,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:22,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:22,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:22,282 INFO L87 Difference]: Start difference. First operand 742 states and 1132 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:24,289 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 [] [2021-12-17 03:03:26,311 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 [] [2021-12-17 03:03:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:26,511 INFO L93 Difference]: Finished difference Result 1538 states and 2335 transitions. [2021-12-17 03:03:26,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-17 03:03:26,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:26,515 INFO L225 Difference]: With dead ends: 1538 [2021-12-17 03:03:26,515 INFO L226 Difference]: Without dead ends: 806 [2021-12-17 03:03:26,516 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 [2021-12-17 03:03:26,516 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 76 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:26,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 504 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 209 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-12-17 03:03:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 742. [2021-12-17 03:03:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.524966261808367) internal successors, (1130), 741 states have internal predecessors, (1130), 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) [2021-12-17 03:03:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1130 transitions. [2021-12-17 03:03:26,527 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1130 transitions. Word has length 109 [2021-12-17 03:03:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:26,527 INFO L470 AbstractCegarLoop]: Abstraction has 742 states and 1130 transitions. [2021-12-17 03:03:26,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1130 transitions. [2021-12-17 03:03:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 03:03:26,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:26,529 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:26,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 03:03:26,529 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:26,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1835668675, now seen corresponding path program 1 times [2021-12-17 03:03:26,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455677263] [2021-12-17 03:03:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:26,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:03:26,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:26,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455677263] [2021-12-17 03:03:26,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455677263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:26,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:26,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:26,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841107116] [2021-12-17 03:03:26,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:26,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:26,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:26,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:26,673 INFO L87 Difference]: Start difference. First operand 742 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:28,680 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 [] [2021-12-17 03:03:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:28,913 INFO L93 Difference]: Finished difference Result 1668 states and 2516 transitions. [2021-12-17 03:03:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:28,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-17 03:03:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:28,916 INFO L225 Difference]: With dead ends: 1668 [2021-12-17 03:03:28,916 INFO L226 Difference]: Without dead ends: 936 [2021-12-17 03:03:28,917 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 [2021-12-17 03:03:28,917 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 90 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:28,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:03:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-12-17 03:03:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 784. [2021-12-17 03:03:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.5466155810983397) internal successors, (1211), 783 states have internal predecessors, (1211), 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) [2021-12-17 03:03:28,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1211 transitions. [2021-12-17 03:03:28,929 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1211 transitions. Word has length 109 [2021-12-17 03:03:28,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:28,930 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1211 transitions. [2021-12-17 03:03:28,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:28,930 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1211 transitions. [2021-12-17 03:03:28,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 03:03:28,931 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:28,932 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:28,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 03:03:28,932 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:28,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash -857076961, now seen corresponding path program 1 times [2021-12-17 03:03:28,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:28,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506040396] [2021-12-17 03:03:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:28,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:03:29,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:29,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506040396] [2021-12-17 03:03:29,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506040396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:29,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:29,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:29,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299268159] [2021-12-17 03:03:29,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:29,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:29,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:29,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:29,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:29,104 INFO L87 Difference]: Start difference. First operand 784 states and 1211 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:31,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:03:33,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:03:33,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:33,268 INFO L93 Difference]: Finished difference Result 1578 states and 2435 transitions. [2021-12-17 03:03:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:33,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-17 03:03:33,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:33,271 INFO L225 Difference]: With dead ends: 1578 [2021-12-17 03:03:33,271 INFO L226 Difference]: Without dead ends: 804 [2021-12-17 03:03:33,272 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 [2021-12-17 03:03:33,272 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 29 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:33,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 466 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2021-12-17 03:03:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-12-17 03:03:33,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 784. [2021-12-17 03:03:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.5440613026819923) internal successors, (1209), 783 states have internal predecessors, (1209), 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) [2021-12-17 03:03:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1209 transitions. [2021-12-17 03:03:33,286 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1209 transitions. Word has length 109 [2021-12-17 03:03:33,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:33,286 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1209 transitions. [2021-12-17 03:03:33,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1209 transitions. [2021-12-17 03:03:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 03:03:33,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:33,288 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:33,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 03:03:33,288 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1487102300, now seen corresponding path program 1 times [2021-12-17 03:03:33,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:33,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390982908] [2021-12-17 03:03:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:33,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-17 03:03:33,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:33,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390982908] [2021-12-17 03:03:33,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390982908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:33,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:33,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:33,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862588114] [2021-12-17 03:03:33,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:33,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:33,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:33,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:33,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:33,428 INFO L87 Difference]: Start difference. First operand 784 states and 1209 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:35,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:03:37,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:03:37,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:37,666 INFO L93 Difference]: Finished difference Result 1618 states and 2483 transitions. [2021-12-17 03:03:37,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:37,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 03:03:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:37,669 INFO L225 Difference]: With dead ends: 1618 [2021-12-17 03:03:37,669 INFO L226 Difference]: Without dead ends: 844 [2021-12-17 03:03:37,670 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 [2021-12-17 03:03:37,670 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 68 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:37,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 500 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:03:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-12-17 03:03:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 784. [2021-12-17 03:03:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.541507024265645) internal successors, (1207), 783 states have internal predecessors, (1207), 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) [2021-12-17 03:03:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1207 transitions. [2021-12-17 03:03:37,690 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1207 transitions. Word has length 110 [2021-12-17 03:03:37,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:37,691 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1207 transitions. [2021-12-17 03:03:37,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1207 transitions. [2021-12-17 03:03:37,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 03:03:37,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:37,693 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:37,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 03:03:37,693 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:37,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash -540911783, now seen corresponding path program 1 times [2021-12-17 03:03:37,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:37,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381786429] [2021-12-17 03:03:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:37,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 03:03:37,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:37,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381786429] [2021-12-17 03:03:37,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381786429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:37,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:37,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:03:37,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379561011] [2021-12-17 03:03:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:37,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:03:37,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:03:37,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:03:37,874 INFO L87 Difference]: Start difference. First operand 784 states and 1207 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:39,881 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 [] [2021-12-17 03:03:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:40,127 INFO L93 Difference]: Finished difference Result 1701 states and 2574 transitions. [2021-12-17 03:03:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:03:40,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 03:03:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:40,129 INFO L225 Difference]: With dead ends: 1701 [2021-12-17 03:03:40,130 INFO L226 Difference]: Without dead ends: 924 [2021-12-17 03:03:40,130 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 [2021-12-17 03:03:40,131 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 86 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:40,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 270 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 03:03:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2021-12-17 03:03:40,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 790. [2021-12-17 03:03:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.541191381495564) internal successors, (1216), 789 states have internal predecessors, (1216), 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) [2021-12-17 03:03:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1216 transitions. [2021-12-17 03:03:40,147 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1216 transitions. Word has length 110 [2021-12-17 03:03:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:40,147 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1216 transitions. [2021-12-17 03:03:40,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1216 transitions. [2021-12-17 03:03:40,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 03:03:40,153 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:40,153 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:40,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 03:03:40,153 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:40,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1069705694, now seen corresponding path program 1 times [2021-12-17 03:03:40,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:40,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215745172] [2021-12-17 03:03:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:40,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 03:03:40,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:03:40,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215745172] [2021-12-17 03:03:40,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215745172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:40,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:40,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:03:40,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596259701] [2021-12-17 03:03:40,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:40,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:03:40,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:03:40,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:03:40,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:03:40,328 INFO L87 Difference]: Start difference. First operand 790 states and 1216 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:42,334 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 [] [2021-12-17 03:03:42,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:42,373 INFO L93 Difference]: Finished difference Result 1571 states and 2426 transitions. [2021-12-17 03:03:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:03:42,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-17 03:03:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:42,376 INFO L225 Difference]: With dead ends: 1571 [2021-12-17 03:03:42,376 INFO L226 Difference]: Without dead ends: 1070 [2021-12-17 03:03:42,377 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 [2021-12-17 03:03:42,377 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:42,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 03:03:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2021-12-17 03:03:42,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1070. [2021-12-17 03:03:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1069 states have (on average 1.5378858746492048) internal successors, (1644), 1069 states have internal predecessors, (1644), 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) [2021-12-17 03:03:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1644 transitions. [2021-12-17 03:03:42,392 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1644 transitions. Word has length 110 [2021-12-17 03:03:42,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:42,392 INFO L470 AbstractCegarLoop]: Abstraction has 1070 states and 1644 transitions. [2021-12-17 03:03:42,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1644 transitions. [2021-12-17 03:03:42,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 03:03:42,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:42,394 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:42,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 03:03:42,394 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:42,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:42,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1254631592, now seen corresponding path program 1 times [2021-12-17 03:03:42,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:03:42,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371260318] [2021-12-17 03:03:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:42,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:03:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 03:03:43,394 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 03:03:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 03:03:43,730 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 03:03:43,731 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 03:03:43,731 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 03:03:43,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 03:03:43,736 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:03:43,738 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 03:03:43,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:03:43 BoogieIcfgContainer [2021-12-17 03:03:43,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 03:03:43,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 03:03:43,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 03:03:43,832 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 03:03:43,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:02:08" (3/4) ... [2021-12-17 03:03:43,834 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 03:03:43,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 03:03:43,835 INFO L158 Benchmark]: Toolchain (without parser) took 98397.74ms. Allocated memory was 98.6MB in the beginning and 205.5MB in the end (delta: 107.0MB). Free memory was 59.1MB in the beginning and 69.2MB in the end (delta: -10.1MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2021-12-17 03:03:43,835 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 03:03:43,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.88ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 65.9MB in the end (delta: -7.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-12-17 03:03:43,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.58ms. Allocated memory is still 98.6MB. Free memory was 65.9MB in the beginning and 61.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 03:03:43,835 INFO L158 Benchmark]: Boogie Preprocessor took 72.10ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 54.6MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 03:03:43,836 INFO L158 Benchmark]: RCFGBuilder took 2900.57ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 54.3MB in the beginning and 108.6MB in the end (delta: -54.3MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2021-12-17 03:03:43,836 INFO L158 Benchmark]: TraceAbstraction took 94887.81ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 108.6MB in the beginning and 70.2MB in the end (delta: 38.5MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. [2021-12-17 03:03:43,836 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 205.5MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 03:03:43,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.88ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 65.9MB in the end (delta: -7.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.58ms. Allocated memory is still 98.6MB. Free memory was 65.9MB in the beginning and 61.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.10ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 54.6MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2900.57ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 54.3MB in the beginning and 108.6MB in the end (delta: -54.3MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 94887.81ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 108.6MB in the beginning and 70.2MB in the end (delta: 38.5MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 205.5MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1665]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1360. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={4:0}] [L1077] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1081] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1082] s->ctx = malloc(sizeof(SSL_CTX)) [L1083] s->session = malloc(sizeof(SSL_SESSION)) [L1084] s->state = 12292 [L1085] s->version = __VERIFIER_nondet_int() [L1087] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1088] EXPR s->ctx [L1088] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1089] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1090] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1091] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->flags = __VERIFIER_nondet_long() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1094] EXPR s->s3 [L1094] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1096] EXPR s->s3 [L1096] (s->s3)->tmp.next_state = __VERIFIER_nondet_int() [L1098] CALL ssl3_connect(s) [L1104] BUF_MEM *buf ; [L1105] unsigned long tmp ; [L1106] unsigned long l ; [L1107] long num1 ; [L1108] void (*cb)() ; [L1109] int ret ; [L1110] int new_state ; [L1111] int state ; [L1112] int skip ; [L1113] int tmp___1 = __VERIFIER_nondet_int() ; [L1114] int tmp___2 = __VERIFIER_nondet_int() ; [L1115] int tmp___3 = __VERIFIER_nondet_int() ; [L1116] int tmp___4 = __VERIFIER_nondet_int() ; [L1117] int tmp___5 = __VERIFIER_nondet_int() ; [L1118] int tmp___6 = __VERIFIER_nondet_int() ; [L1119] int tmp___7 = __VERIFIER_nondet_int() ; [L1120] int tmp___8 = __VERIFIER_nondet_int() ; [L1121] long tmp___9 = __VERIFIER_nondet_long() ; [L1122] int blastFlag ; [L1125] blastFlag = 0 [L1126] s->hit=__VERIFIER_nondet_int () [L1127] s->state = 12292 [L1128] tmp = __VERIFIER_nondet_int() [L1129] cb = (void (*)())((void *)0) [L1130] ret = -1 [L1131] skip = 0 [L1132] EXPR s->info_callback VAL [={0:0}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->info_callback={0:7}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1132] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1133] EXPR s->info_callback [L1133] cb = s->info_callback [L1141] EXPR s->in_handshake [L1141] s->in_handshake += 1 [L1142] COND FALSE !(tmp___1 & 12288) VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=12292, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND TRUE s->state == 12292 [L1258] s->new_session = 1 [L1259] s->state = 4096 [L1260] EXPR s->ctx [L1260] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1260] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1265] s->server = 0 VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1266] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1271] EXPR s->version VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->version=5, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1271] COND FALSE !((s->version & 65280) != 768) [L1277] s->type = 4096 [L1278] EXPR s->init_buf VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->init_buf={0:-8}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1278] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1296] COND FALSE !(! tmp___4) VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1302] COND FALSE !(! tmp___5) [L1308] s->state = 4368 [L1309] EXPR s->ctx [L1309] EXPR (s->ctx)->stats.sess_connect [L1309] (s->ctx)->stats.sess_connect += 1 [L1310] s->init_num = 0 VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:7}, (s->s3)->tmp.reuse_message=4294967311, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->s3={-10:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:7}, blastFlag=0, init=1, ret=-1, s={-11:0}, s={-11:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND TRUE s->state == 4368 [L1314] s->shutdown = 0 [L1315] ret = __VERIFIER_nondet_int() [L1316] COND TRUE blastFlag == 0 [L1317] blastFlag = 1 VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1321] COND FALSE !(ret <= 0) [L1326] s->state = 4384 [L1327] s->init_num = 0 [L1328] EXPR s->bbio [L1328] EXPR s->wbio VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->bbio={0:-7}, s->wbio={0:14}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1328] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:7}, (s->s3)->tmp.reuse_message=4294967311, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->s3={-10:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:7}, blastFlag=1, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND TRUE s->state == 4384 [L1336] ret = __VERIFIER_nondet_int() [L1337] COND TRUE blastFlag == 1 [L1338] blastFlag = 2 VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1346] COND FALSE !(ret <= 0) [L1351] s->hit VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->hit=0, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1351] COND FALSE !(s->hit) [L1354] s->state = 4400 VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1356] s->init_num = 0 VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:7}, (s->s3)->tmp.reuse_message=4294967311, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->s3={-10:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:7}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND TRUE s->state == 4400 [L1360] EXPR s->s3 [L1360] EXPR (s->s3)->tmp.new_cipher [L1360] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:7}, ((s->s3)->tmp.new_cipher)->algorithms=4294967346, (s->s3)->tmp.new_cipher={-12:0}, blastFlag=2, init=1, ret=17, s={-11:0}, s={-11:0}, s->s3={-10:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1360] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 2 [L1365] blastFlag = 3 VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1369] COND FALSE !(ret <= 0) VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1375] s->state = 4416 [L1376] s->init_num = 0 VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:7}, (s->s3)->tmp.reuse_message=4294967311, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->s3={-10:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 4400) [L1185] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 4401) [L1188] EXPR s->state VAL [={0:7}, blastFlag=3, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1188] COND TRUE s->state == 4416 [L1380] ret = __VERIFIER_nondet_int() [L1381] COND TRUE blastFlag == 3 [L1382] blastFlag = 4 VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1386] COND FALSE !(ret <= 0) [L1391] s->state = 4432 [L1392] s->init_num = 0 VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1393] COND FALSE !(! tmp___6) VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:7}, (s->s3)->tmp.reuse_message=4294967311, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->s3={-10:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 4400) [L1185] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 4401) [L1188] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 4416) [L1191] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 4417) [L1194] EXPR s->state VAL [={0:7}, blastFlag=4, init=1, ret=1, s={-11:0}, s={-11:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1194] COND TRUE s->state == 4432 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 VAL [={0:7}, blastFlag=4, init=1, ret=0, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1665] reach_error() VAL [={0:7}, blastFlag=4, init=1, ret=0, s={-11:0}, s={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 94.8s, OverallIterations: 28, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 88.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 41 mSolverCounterUnknown, 2314 SdHoareTripleChecker+Valid, 87.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2314 mSDsluCounter, 11610 SdHoareTripleChecker+Invalid, 86.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6620 mSDsCounter, 463 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4831 IncrementalHoareTripleChecker+Invalid, 5335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 463 mSolverCounterUnsat, 4990 mSDtfsCounter, 4831 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1070occurred in iteration=27, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 2747 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2619 NumberOfCodeBlocks, 2619 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2480 ConstructedInterpolants, 0 QuantifiedInterpolants, 6077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 2585/2585 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 [2021-12-17 03:03:43,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 03:03:45,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 03:03:45,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 03:03:45,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 03:03:45,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 03:03:45,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 03:03:45,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 03:03:45,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 03:03:45,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 03:03:45,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 03:03:45,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 03:03:45,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 03:03:45,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 03:03:45,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 03:03:45,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 03:03:45,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 03:03:45,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 03:03:45,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 03:03:45,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 03:03:45,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 03:03:45,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 03:03:45,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 03:03:45,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 03:03:45,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 03:03:45,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 03:03:45,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 03:03:45,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 03:03:45,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 03:03:45,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 03:03:45,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 03:03:45,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 03:03:45,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 03:03:45,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 03:03:45,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 03:03:45,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 03:03:45,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 03:03:45,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 03:03:45,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 03:03:45,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 03:03:45,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 03:03:45,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 03:03:45,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 03:03:45,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 03:03:45,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 03:03:45,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 03:03:45,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 03:03:45,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 03:03:45,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 03:03:45,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 03:03:45,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 03:03:45,665 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 03:03:45,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 03:03:45,666 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 03:03:45,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 03:03:45,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 03:03:45,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 03:03:45,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 03:03:45,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 03:03:45,667 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 03:03:45,667 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 03:03:45,667 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 03:03:45,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 03:03:45,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 03:03:45,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 03:03:45,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 03:03:45,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 03:03:45,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 03:03:45,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 03:03:45,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:03:45,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 03:03:45,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 03:03:45,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 03:03:45,669 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 03:03:45,670 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 03:03:45,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 03:03:45,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 03:03:45,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 03:03:45,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 03:03:45,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 03:03:45,671 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 [2021-12-17 03:03:45,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 03:03:45,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 03:03:45,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 03:03:45,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 03:03:45,960 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 03:03:45,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-17 03:03:46,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2bd57fba/a831f26f5dc54bfaaf41d600a40f4558/FLAGd649792dc [2021-12-17 03:03:46,392 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 03:03:46,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-17 03:03:46,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2bd57fba/a831f26f5dc54bfaaf41d600a40f4558/FLAGd649792dc [2021-12-17 03:03:46,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2bd57fba/a831f26f5dc54bfaaf41d600a40f4558 [2021-12-17 03:03:46,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 03:03:46,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 03:03:46,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 03:03:46,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 03:03:46,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 03:03:46,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:03:46" (1/1) ... [2021-12-17 03:03:46,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b8b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:46, skipping insertion in model container [2021-12-17 03:03:46,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:03:46" (1/1) ... [2021-12-17 03:03:46,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 03:03:46,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:03:47,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-17 03:03:47,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:03:47,192 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-17 03:03:47,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:03:47,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-17 03:03:47,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:03:47,293 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 03:03:47,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-17 03:03:47,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:03:47,387 INFO L208 MainTranslator]: Completed translation [2021-12-17 03:03:47,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47 WrapperNode [2021-12-17 03:03:47,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 03:03:47,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 03:03:47,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 03:03:47,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 03:03:47,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,462 INFO L137 Inliner]: procedures = 35, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 689 [2021-12-17 03:03:47,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 03:03:47,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 03:03:47,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 03:03:47,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 03:03:47,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 03:03:47,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 03:03:47,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 03:03:47,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 03:03:47,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (1/1) ... [2021-12-17 03:03:47,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:03:47,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:03:47,584 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) [2021-12-17 03:03:47,607 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 [2021-12-17 03:03:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 03:03:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 03:03:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 03:03:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 03:03:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 03:03:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 03:03:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 03:03:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 03:03:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 03:03:47,813 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 03:03:47,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 03:03:47,825 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-17 03:03:53,456 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-17 03:03:53,456 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-17 03:03:53,456 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 03:03:53,463 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 03:03:53,463 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 03:03:53,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:03:53 BoogieIcfgContainer [2021-12-17 03:03:53,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 03:03:53,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 03:03:53,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 03:03:53,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 03:03:53,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:03:46" (1/3) ... [2021-12-17 03:03:53,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ae1615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:03:53, skipping insertion in model container [2021-12-17 03:03:53,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:03:47" (2/3) ... [2021-12-17 03:03:53,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ae1615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:03:53, skipping insertion in model container [2021-12-17 03:03:53,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:03:53" (3/3) ... [2021-12-17 03:03:53,470 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2021-12-17 03:03:53,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 03:03:53,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 03:03:53,511 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 03:03:53,517 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 [2021-12-17 03:03:53,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 03:03:53,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:53,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 03:03:53,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:53,533 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] [2021-12-17 03:03:53,534 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:53,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-12-17 03:03:53,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:03:53,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532234071] [2021-12-17 03:03:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:53,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:03:53,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:03:53,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 03:03:53,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 03:03:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:54,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:03:54,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:03:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:03:54,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:03:54,437 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:03:54,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532234071] [2021-12-17 03:03:54,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532234071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:54,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:54,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:03:54,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146662182] [2021-12-17 03:03:54,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:54,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:03:54,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:03:54,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:03:54,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:03:54,458 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:54,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:54,545 INFO L93 Difference]: Finished difference Result 369 states and 623 transitions. [2021-12-17 03:03:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:03:54,550 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 [2021-12-17 03:03:54,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:54,559 INFO L225 Difference]: With dead ends: 369 [2021-12-17 03:03:54,559 INFO L226 Difference]: Without dead ends: 213 [2021-12-17 03:03:54,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:03:54,564 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 180 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:54,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 03:03:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-12-17 03:03:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-12-17 03:03:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4952830188679245) internal successors, (317), 212 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:54,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 317 transitions. [2021-12-17 03:03:54,620 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 317 transitions. Word has length 24 [2021-12-17 03:03:54,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:54,620 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 317 transitions. [2021-12-17 03:03:54,621 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) [2021-12-17 03:03:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 317 transitions. [2021-12-17 03:03:54,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-17 03:03:54,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:54,623 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] [2021-12-17 03:03:54,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 03:03:54,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 03:03:54,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1192110763, now seen corresponding path program 1 times [2021-12-17 03:03:54,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:03:54,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279892068] [2021-12-17 03:03:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:54,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:03:54,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:03:54,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 03:03:54,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 03:03:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:55,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:03:55,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:03:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:03:55,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:03:55,798 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:03:55,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279892068] [2021-12-17 03:03:55,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279892068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:55,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:55,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:03:55,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325447517] [2021-12-17 03:03:55,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:55,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:03:55,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:03:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:03:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:03:55,800 INFO L87 Difference]: Start difference. First operand 213 states and 317 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:57,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:03:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:03:57,925 INFO L93 Difference]: Finished difference Result 417 states and 626 transitions. [2021-12-17 03:03:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:03:57,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-12-17 03:03:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:03:57,934 INFO L225 Difference]: With dead ends: 417 [2021-12-17 03:03:57,934 INFO L226 Difference]: Without dead ends: 312 [2021-12-17 03:03:57,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:03:57,936 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:03:57,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 461 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:03:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-12-17 03:03:57,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-12-17 03:03:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.4887459807073955) internal successors, (463), 311 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:57,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 463 transitions. [2021-12-17 03:03:57,959 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 463 transitions. Word has length 39 [2021-12-17 03:03:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:03:57,960 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 463 transitions. [2021-12-17 03:03:57,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:03:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 463 transitions. [2021-12-17 03:03:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-17 03:03:57,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:03:57,962 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] [2021-12-17 03:03:57,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-17 03:03:58,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 03:03:58,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:03:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:03:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1499463818, now seen corresponding path program 1 times [2021-12-17 03:03:58,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:03:58,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91111049] [2021-12-17 03:03:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:03:58,194 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:03:58,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:03:58,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 03:03:58,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 03:03:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:03:59,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:03:59,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:03:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-17 03:03:59,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:03:59,230 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:03:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91111049] [2021-12-17 03:03:59,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91111049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:03:59,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:03:59,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:03:59,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913150411] [2021-12-17 03:03:59,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:03:59,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:03:59,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:03:59,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:03:59,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:03:59,232 INFO L87 Difference]: Start difference. First operand 312 states and 463 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:04:01,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:04:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:04:01,337 INFO L93 Difference]: Finished difference Result 618 states and 923 transitions. [2021-12-17 03:04:01,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:04:01,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-12-17 03:04:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:04:01,340 INFO L225 Difference]: With dead ends: 618 [2021-12-17 03:04:01,340 INFO L226 Difference]: Without dead ends: 414 [2021-12-17 03:04:01,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:04:01,341 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:04:01,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:04:01,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-17 03:04:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-12-17 03:04:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.4842615012106537) internal successors, (613), 413 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:04:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 613 transitions. [2021-12-17 03:04:01,364 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 613 transitions. Word has length 57 [2021-12-17 03:04:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:04:01,364 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 613 transitions. [2021-12-17 03:04:01,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:04:01,364 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 613 transitions. [2021-12-17 03:04:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-17 03:04:01,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:04:01,367 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] [2021-12-17 03:04:01,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-17 03:04:01,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 03:04:01,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:04:01,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:04:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash -817434927, now seen corresponding path program 1 times [2021-12-17 03:04:01,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:04:01,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108888113] [2021-12-17 03:04:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:04:01,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:04:01,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:04:01,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 03:04:01,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 03:04:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:04:02,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:04:02,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:04:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-17 03:04:02,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:04:02,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:04:02,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108888113] [2021-12-17 03:04:02,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108888113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:04:02,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:04:02,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:04:02,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374297002] [2021-12-17 03:04:02,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:04:02,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:04:02,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:04:02,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:04:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:04:02,752 INFO L87 Difference]: Start difference. First operand 414 states and 613 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:04:04,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:04:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:04:04,862 INFO L93 Difference]: Finished difference Result 821 states and 1222 transitions. [2021-12-17 03:04:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:04:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-17 03:04:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:04:04,865 INFO L225 Difference]: With dead ends: 821 [2021-12-17 03:04:04,865 INFO L226 Difference]: Without dead ends: 515 [2021-12-17 03:04:04,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:04:04,866 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:04:04,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 467 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:04:04,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-12-17 03:04:04,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-12-17 03:04:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.482490272373541) internal successors, (762), 514 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:04:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 762 transitions. [2021-12-17 03:04:04,881 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 762 transitions. Word has length 77 [2021-12-17 03:04:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:04:04,882 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 762 transitions. [2021-12-17 03:04:04,882 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) [2021-12-17 03:04:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 762 transitions. [2021-12-17 03:04:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-17 03:04:04,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:04:04,885 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] [2021-12-17 03:04:04,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 03:04:05,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 03:04:05,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:04:05,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:04:05,106 INFO L85 PathProgramCache]: Analyzing trace with hash 922615118, now seen corresponding path program 1 times [2021-12-17 03:04:05,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:04:05,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272588923] [2021-12-17 03:04:05,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:04:05,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:04:05,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:04:05,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 03:04:05,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 03:04:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:04:06,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 03:04:06,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:04:09,096 INFO L354 Elim1Store]: treesize reduction 32, result has 78.5 percent of original size [2021-12-17 03:04:09,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 1433 treesize of output 1065 [2021-12-17 03:04:11,144 INFO L354 Elim1Store]: treesize reduction 1374, result has 25.4 percent of original size [2021-12-17 03:04:11,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 2954 treesize of output 1674 [2021-12-17 03:04:11,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1623 treesize of output 1485 [2021-12-17 03:04:11,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1464 treesize of output 1068 [2021-12-17 03:04:11,544 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:04:11,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 997 treesize of output 905 [2021-12-17 03:04:11,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 761 treesize of output 721 [2021-12-17 03:04:11,789 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:04:11,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 687 treesize of output 655 [2021-12-17 03:04:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:11,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,190 INFO L244 Elim1Store]: Index analysis took 349 ms [2021-12-17 03:04:12,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 87 [2021-12-17 03:04:12,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:12,877 INFO L244 Elim1Store]: Index analysis took 319 ms [2021-12-17 03:04:13,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 111 [2021-12-17 03:04:13,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:04:13,569 INFO L244 Elim1Store]: Index analysis took 301 ms [2021-12-17 03:04:13,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 111 [2021-12-17 03:04:13,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 113 [2021-12-17 03:09:20,977 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:09:20,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 73 [2021-12-17 03:09:21,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:09:22,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:09:22,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:09:22,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:09:22,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:09:22,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 163 [2021-12-17 03:09:22,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:22,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 85 [2021-12-17 03:09:23,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 85 [2021-12-17 03:09:23,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 163 [2021-12-17 03:09:23,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 85 [2021-12-17 03:09:23,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 173 [2021-12-17 03:09:23,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:09:23,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 85 [2021-12-17 03:09:24,920 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:09:24,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 792 treesize of output 804 [2021-12-17 03:11:08,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:08,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:11:08,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:08,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:11:08,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:14,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:14,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:11:14,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:14,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:11:14,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:16,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:16,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:11:16,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-17 03:11:16,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-12-17 03:11:16,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 Killed by 15