./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.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.01.i.cil-2.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 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 02:58:37,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 02:58:37,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 02:58:37,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 02:58:37,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 02:58:37,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 02:58:37,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 02:58:37,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 02:58:37,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 02:58:37,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 02:58:37,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 02:58:37,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 02:58:37,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 02:58:37,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 02:58:37,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 02:58:37,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 02:58:37,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 02:58:37,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 02:58:37,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 02:58:37,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 02:58:37,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 02:58:37,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 02:58:37,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 02:58:37,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 02:58:37,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 02:58:37,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 02:58:37,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 02:58:37,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 02:58:37,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 02:58:37,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 02:58:37,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 02:58:37,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 02:58:37,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 02:58:37,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 02:58:37,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 02:58:37,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 02:58:37,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 02:58:37,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 02:58:37,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 02:58:37,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 02:58:37,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 02:58:37,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 02:58:37,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 02:58:37,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 02:58:37,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 02:58:37,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 02:58:37,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 02:58:37,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 02:58:37,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 02:58:37,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 02:58:37,828 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 02:58:37,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 02:58:37,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 02:58:37,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 02:58:37,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 02:58:37,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 02:58:37,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 02:58:37,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 02:58:37,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 02:58:37,830 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 02:58:37,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 02:58:37,830 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 02:58:37,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 02:58:37,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 02:58:37,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 02:58:37,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 02:58:37,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 02:58:37,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 02:58:37,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 02:58:37,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 02:58:37,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 02:58:37,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 02:58:37,832 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 02:58:37,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 02:58:37,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 02:58:37,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 02:58:37,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 [2021-12-17 02:58:38,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 02:58:38,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 02:58:38,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 02:58:38,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 02:58:38,069 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 02:58:38,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-12-17 02:58:38,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ddc0f9d/b56e61ebd90446e9bd58d0ce62ee1a73/FLAGd9c49e9f3 [2021-12-17 02:58:38,558 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 02:58:38,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-12-17 02:58:38,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ddc0f9d/b56e61ebd90446e9bd58d0ce62ee1a73/FLAGd9c49e9f3 [2021-12-17 02:58:38,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ddc0f9d/b56e61ebd90446e9bd58d0ce62ee1a73 [2021-12-17 02:58:38,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 02:58:38,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 02:58:38,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 02:58:38,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 02:58:38,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 02:58:38,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:58:38" (1/1) ... [2021-12-17 02:58:38,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4f0351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:38, skipping insertion in model container [2021-12-17 02:58:38,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:58:38" (1/1) ... [2021-12-17 02:58:38,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 02:58:38,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 02:58:39,201 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.01.i.cil-2.c[65520,65533] [2021-12-17 02:58:39,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 02:58:39,225 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 02:58:39,328 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.01.i.cil-2.c[65520,65533] [2021-12-17 02:58:39,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 02:58:39,341 INFO L208 MainTranslator]: Completed translation [2021-12-17 02:58:39,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39 WrapperNode [2021-12-17 02:58:39,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 02:58:39,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 02:58:39,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 02:58:39,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 02:58:39,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,416 INFO L137 Inliner]: procedures = 31, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 724 [2021-12-17 02:58:39,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 02:58:39,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 02:58:39,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 02:58:39,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 02:58:39,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 02:58:39,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 02:58:39,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 02:58:39,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 02:58:39,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (1/1) ... [2021-12-17 02:58:39,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 02:58:39,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 02:58:39,557 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 02:58:39,562 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 02:58:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 02:58:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 02:58:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 02:58:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 02:58:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 02:58:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 02:58:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 02:58:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 02:58:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 02:58:39,754 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 02:58:39,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 02:58:39,766 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-17 02:58:42,436 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-17 02:58:42,437 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-17 02:58:42,437 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 02:58:42,442 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 02:58:42,442 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 02:58:42,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:58:42 BoogieIcfgContainer [2021-12-17 02:58:42,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 02:58:42,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 02:58:42,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 02:58:42,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 02:58:42,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 02:58:38" (1/3) ... [2021-12-17 02:58:42,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4650b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:58:42, skipping insertion in model container [2021-12-17 02:58:42,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:58:39" (2/3) ... [2021-12-17 02:58:42,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4650b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:58:42, skipping insertion in model container [2021-12-17 02:58:42,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:58:42" (3/3) ... [2021-12-17 02:58:42,449 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2021-12-17 02:58:42,452 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 02:58:42,453 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 02:58:42,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 02:58:42,495 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 02:58:42,495 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 02:58:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 02:58:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 02:58:42,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:42,521 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 02:58:42,521 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1457703967, now seen corresponding path program 1 times [2021-12-17 02:58:42,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:42,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462666603] [2021-12-17 02:58:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:42,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:43,013 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 02:58:43,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:43,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462666603] [2021-12-17 02:58:43,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462666603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:43,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:43,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:58:43,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895246950] [2021-12-17 02:58:43,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:43,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:58:43,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:58:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:58:43,046 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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 02:58:45,077 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 02:58:45,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:58:45,405 INFO L93 Difference]: Finished difference Result 365 states and 610 transitions. [2021-12-17 02:58:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:58:45,408 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 02:58:45,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:58:45,419 INFO L225 Difference]: With dead ends: 365 [2021-12-17 02:58:45,420 INFO L226 Difference]: Without dead ends: 208 [2021-12-17 02:58:45,422 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 02:58:45,424 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 143 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 381 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 02:58:45,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 381 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 02:58:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-12-17 02:58:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 138. [2021-12-17 02:58:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.5547445255474452) internal successors, (213), 137 states have internal predecessors, (213), 0 states have call successors, (0), 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 02:58:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 213 transitions. [2021-12-17 02:58:45,472 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 213 transitions. Word has length 24 [2021-12-17 02:58:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:58:45,473 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 213 transitions. [2021-12-17 02:58:45,473 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 02:58:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions. [2021-12-17 02:58:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 02:58:45,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:45,476 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 02:58:45,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 02:58:45,477 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:45,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2051399350, now seen corresponding path program 1 times [2021-12-17 02:58:45,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:45,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60165397] [2021-12-17 02:58:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:45,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:45,672 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 02:58:45,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:45,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60165397] [2021-12-17 02:58:45,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60165397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:45,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:45,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:58:45,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442553653] [2021-12-17 02:58:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:45,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:58:45,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:45,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:58:45,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:58:45,676 INFO L87 Difference]: Start difference. First operand 138 states and 213 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 02:58:47,689 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 02:58:47,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:58:47,876 INFO L93 Difference]: Finished difference Result 273 states and 420 transitions. [2021-12-17 02:58:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:58:47,876 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 02:58:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:58:47,877 INFO L225 Difference]: With dead ends: 273 [2021-12-17 02:58:47,877 INFO L226 Difference]: Without dead ends: 142 [2021-12-17 02:58:47,878 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 02:58:47,878 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 7 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:58:47,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 409 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:58:47,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-17 02:58:47,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2021-12-17 02:58:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.542857142857143) internal successors, (216), 140 states have internal predecessors, (216), 0 states have call successors, (0), 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 02:58:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 216 transitions. [2021-12-17 02:58:47,884 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 216 transitions. Word has length 25 [2021-12-17 02:58:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:58:47,885 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 216 transitions. [2021-12-17 02:58:47,885 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 02:58:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 216 transitions. [2021-12-17 02:58:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-17 02:58:47,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:47,886 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, 1] [2021-12-17 02:58:47,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 02:58:47,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:47,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:47,886 INFO L85 PathProgramCache]: Analyzing trace with hash 807318891, now seen corresponding path program 1 times [2021-12-17 02:58:47,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:47,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000064401] [2021-12-17 02:58:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:47,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:48,112 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 02:58:48,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:48,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000064401] [2021-12-17 02:58:48,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000064401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:48,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:48,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 02:58:48,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861537057] [2021-12-17 02:58:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:48,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 02:58:48,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 02:58:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 02:58:48,116 INFO L87 Difference]: Start difference. First operand 141 states and 216 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 02:58:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:58:48,150 INFO L93 Difference]: Finished difference Result 399 states and 616 transitions. [2021-12-17 02:58:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 02:58:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-12-17 02:58:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:58:48,155 INFO L225 Difference]: With dead ends: 399 [2021-12-17 02:58:48,155 INFO L226 Difference]: Without dead ends: 268 [2021-12-17 02:58:48,157 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 02:58:48,161 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 124 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 314 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 02:58:48,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 314 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 02:58:48,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-12-17 02:58:48,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2021-12-17 02:58:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.5280898876404494) internal successors, (408), 267 states have internal predecessors, (408), 0 states have call successors, (0), 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 02:58:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 408 transitions. [2021-12-17 02:58:48,173 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 408 transitions. Word has length 40 [2021-12-17 02:58:48,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:58:48,173 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 408 transitions. [2021-12-17 02:58:48,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 02:58:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 408 transitions. [2021-12-17 02:58:48,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-17 02:58:48,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:48,175 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 02:58:48,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 02:58:48,176 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:48,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1025523383, now seen corresponding path program 1 times [2021-12-17 02:58:48,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:48,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23413685] [2021-12-17 02:58:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:48,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:48,383 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 02:58:48,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:48,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23413685] [2021-12-17 02:58:48,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23413685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:48,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:48,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 02:58:48,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201630945] [2021-12-17 02:58:48,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:48,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 02:58:48,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:48,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 02:58:48,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 02:58:48,390 INFO L87 Difference]: Start difference. First operand 268 states and 408 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 02:58:50,403 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 02:58:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:58:50,446 INFO L93 Difference]: Finished difference Result 525 states and 807 transitions. [2021-12-17 02:58:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 02:58:50,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-12-17 02:58:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:58:50,448 INFO L225 Difference]: With dead ends: 525 [2021-12-17 02:58:50,448 INFO L226 Difference]: Without dead ends: 394 [2021-12-17 02:58:50,449 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 02:58:50,449 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 125 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 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, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 02:58:50,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 467 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 02:58:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-12-17 02:58:50,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2021-12-17 02:58:50,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 393 states have (on average 1.5241730279898218) internal successors, (599), 393 states have internal predecessors, (599), 0 states have call successors, (0), 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 02:58:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 599 transitions. [2021-12-17 02:58:50,462 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 599 transitions. Word has length 55 [2021-12-17 02:58:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:58:50,463 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 599 transitions. [2021-12-17 02:58:50,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 02:58:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 599 transitions. [2021-12-17 02:58:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-17 02:58:50,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:50,466 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, 1] [2021-12-17 02:58:50,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 02:58:50,466 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:50,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2062745025, now seen corresponding path program 1 times [2021-12-17 02:58:50,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:50,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056435397] [2021-12-17 02:58:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:50,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:50,648 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 02:58:50,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:50,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056435397] [2021-12-17 02:58:50,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056435397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:50,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:50,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:58:50,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099651844] [2021-12-17 02:58:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:50,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:58:50,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:50,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:58:50,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:58:50,651 INFO L87 Difference]: Start difference. First operand 394 states and 599 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 02:58:52,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 02:58:54,683 WARN L534 Checker$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 02:58:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:58:54,962 INFO L93 Difference]: Finished difference Result 960 states and 1456 transitions. [2021-12-17 02:58:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:58:54,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-17 02:58:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:58:54,965 INFO L225 Difference]: With dead ends: 960 [2021-12-17 02:58:54,965 INFO L226 Difference]: Without dead ends: 576 [2021-12-17 02:58:54,966 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 02:58:54,967 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 93 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 560 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 02:58:54,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 560 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 02:58:54,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2021-12-17 02:58:54,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 446. [2021-12-17 02:58:54,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.543820224719101) internal successors, (687), 445 states have internal predecessors, (687), 0 states have call successors, (0), 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 02:58:54,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 687 transitions. [2021-12-17 02:58:54,977 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 687 transitions. Word has length 73 [2021-12-17 02:58:54,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:58:54,977 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 687 transitions. [2021-12-17 02:58:54,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 02:58:54,978 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 687 transitions. [2021-12-17 02:58:54,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-17 02:58:54,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:54,980 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, 1] [2021-12-17 02:58:54,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 02:58:54,980 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1922196415, now seen corresponding path program 1 times [2021-12-17 02:58:54,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:54,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831269594] [2021-12-17 02:58:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:54,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:55,129 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 02:58:55,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:55,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831269594] [2021-12-17 02:58:55,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831269594] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:55,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:55,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:58:55,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705390784] [2021-12-17 02:58:55,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:55,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:58:55,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:55,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:58:55,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:58:55,132 INFO L87 Difference]: Start difference. First operand 446 states and 687 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 02:58:57,142 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 02:58:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:58:57,368 INFO L93 Difference]: Finished difference Result 1157 states and 1771 transitions. [2021-12-17 02:58:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:58:57,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-17 02:58:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:58:57,370 INFO L225 Difference]: With dead ends: 1157 [2021-12-17 02:58:57,370 INFO L226 Difference]: Without dead ends: 721 [2021-12-17 02:58:57,371 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 02:58:57,372 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 108 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 270 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 02:58:57,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 270 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:58:57,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-12-17 02:58:57,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 469. [2021-12-17 02:58:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.561965811965812) internal successors, (731), 468 states have internal predecessors, (731), 0 states have call successors, (0), 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 02:58:57,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 731 transitions. [2021-12-17 02:58:57,381 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 731 transitions. Word has length 73 [2021-12-17 02:58:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:58:57,381 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 731 transitions. [2021-12-17 02:58:57,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 02:58:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 731 transitions. [2021-12-17 02:58:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 02:58:57,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:58:57,382 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, 1, 1] [2021-12-17 02:58:57,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 02:58:57,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:58:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:58:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash 475156595, now seen corresponding path program 1 times [2021-12-17 02:58:57,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:58:57,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442722039] [2021-12-17 02:58:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:58:57,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:58:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:58:57,557 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 02:58:57,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:58:57,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442722039] [2021-12-17 02:58:57,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442722039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:58:57,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:58:57,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:58:57,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233383594] [2021-12-17 02:58:57,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:58:57,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:58:57,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:58:57,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:58:57,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:58:57,559 INFO L87 Difference]: Start difference. First operand 469 states and 731 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:58:59,575 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 02:59:01,591 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 02:59:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:01,859 INFO L93 Difference]: Finished difference Result 1110 states and 1718 transitions. [2021-12-17 02:59:01,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 74 [2021-12-17 02:59:01,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:01,861 INFO L225 Difference]: With dead ends: 1110 [2021-12-17 02:59:01,861 INFO L226 Difference]: Without dead ends: 651 [2021-12-17 02:59:01,862 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 02:59:01,862 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 91 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 560 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 02:59:01,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 560 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 02:59:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2021-12-17 02:59:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 523. [2021-12-17 02:59:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.5727969348659003) internal successors, (821), 522 states have internal predecessors, (821), 0 states have call successors, (0), 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 02:59:01,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 821 transitions. [2021-12-17 02:59:01,871 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 821 transitions. Word has length 74 [2021-12-17 02:59:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:01,871 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 821 transitions. [2021-12-17 02:59:01,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:59:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 821 transitions. [2021-12-17 02:59:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-17 02:59:01,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:01,873 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, 1, 1] [2021-12-17 02:59:01,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 02:59:01,873 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:01,873 INFO L85 PathProgramCache]: Analyzing trace with hash 537196209, now seen corresponding path program 1 times [2021-12-17 02:59:01,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:01,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911208412] [2021-12-17 02:59:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:01,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:02,011 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 02:59:02,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:02,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911208412] [2021-12-17 02:59:02,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911208412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:02,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:02,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:02,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19017586] [2021-12-17 02:59:02,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:02,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:02,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:02,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:02,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:02,015 INFO L87 Difference]: Start difference. First operand 523 states and 821 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:59:04,027 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 02:59:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:04,269 INFO L93 Difference]: Finished difference Result 1311 states and 2033 transitions. [2021-12-17 02:59:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:04,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 74 [2021-12-17 02:59:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:04,273 INFO L225 Difference]: With dead ends: 1311 [2021-12-17 02:59:04,273 INFO L226 Difference]: Without dead ends: 798 [2021-12-17 02:59:04,273 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 02:59:04,274 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 106 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:04,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 270 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2021-12-17 02:59:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 547. [2021-12-17 02:59:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 546 states have (on average 1.5805860805860805) internal successors, (863), 546 states have internal predecessors, (863), 0 states have call successors, (0), 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 02:59:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 863 transitions. [2021-12-17 02:59:04,285 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 863 transitions. Word has length 74 [2021-12-17 02:59:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:04,285 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 863 transitions. [2021-12-17 02:59:04,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:59:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 863 transitions. [2021-12-17 02:59:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-17 02:59:04,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:04,286 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, 1, 1, 1] [2021-12-17 02:59:04,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 02:59:04,287 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:04,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1840475418, now seen corresponding path program 1 times [2021-12-17 02:59:04,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:04,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584574546] [2021-12-17 02:59:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:04,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:04,417 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 02:59:04,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:04,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584574546] [2021-12-17 02:59:04,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584574546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:04,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:04,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:04,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241628684] [2021-12-17 02:59:04,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:04,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:04,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:04,420 INFO L87 Difference]: Start difference. First operand 547 states and 863 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:59:06,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 02:59:08,455 WARN L534 Checker$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 02:59:08,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:08,731 INFO L93 Difference]: Finished difference Result 1256 states and 1968 transitions. [2021-12-17 02:59:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:08,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 75 [2021-12-17 02:59:08,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:08,734 INFO L225 Difference]: With dead ends: 1256 [2021-12-17 02:59:08,734 INFO L226 Difference]: Without dead ends: 719 [2021-12-17 02:59:08,734 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 02:59:08,735 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 84 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:08,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 550 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 02:59:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-12-17 02:59:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 603. [2021-12-17 02:59:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 602 states have (on average 1.5863787375415281) internal successors, (955), 602 states have internal predecessors, (955), 0 states have call successors, (0), 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 02:59:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 955 transitions. [2021-12-17 02:59:08,746 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 955 transitions. Word has length 75 [2021-12-17 02:59:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:08,746 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 955 transitions. [2021-12-17 02:59:08,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:59:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 955 transitions. [2021-12-17 02:59:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-17 02:59:08,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:08,751 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, 1, 1, 1] [2021-12-17 02:59:08,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 02:59:08,751 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash -531263844, now seen corresponding path program 1 times [2021-12-17 02:59:08,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:08,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715882951] [2021-12-17 02:59:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:08,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:08,951 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 02:59:08,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:08,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715882951] [2021-12-17 02:59:08,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715882951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:08,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:08,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:08,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320301066] [2021-12-17 02:59:08,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:08,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:08,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:08,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:08,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:08,954 INFO L87 Difference]: Start difference. First operand 603 states and 955 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:59:10,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 02:59:12,985 WARN L534 Checker$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 02:59:13,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:13,177 INFO L93 Difference]: Finished difference Result 1280 states and 2021 transitions. [2021-12-17 02:59:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 75 [2021-12-17 02:59:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:13,180 INFO L225 Difference]: With dead ends: 1280 [2021-12-17 02:59:13,180 INFO L226 Difference]: Without dead ends: 687 [2021-12-17 02:59:13,180 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 02:59:13,182 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 38 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:13,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 496 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 02:59:13,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2021-12-17 02:59:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 643. [2021-12-17 02:59:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5934579439252337) internal successors, (1023), 642 states have internal predecessors, (1023), 0 states have call successors, (0), 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 02:59:13,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1023 transitions. [2021-12-17 02:59:13,193 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1023 transitions. Word has length 75 [2021-12-17 02:59:13,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:13,193 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 1023 transitions. [2021-12-17 02:59:13,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:59:13,194 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1023 transitions. [2021-12-17 02:59:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 02:59:13,195 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:13,195 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1] [2021-12-17 02:59:13,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 02:59:13,195 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:13,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1153809187, now seen corresponding path program 2 times [2021-12-17 02:59:13,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:13,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436978881] [2021-12-17 02:59:13,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:13,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:13,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:13,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436978881] [2021-12-17 02:59:13,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436978881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:13,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:13,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:13,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194279380] [2021-12-17 02:59:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:13,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:13,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:13,377 INFO L87 Difference]: Start difference. First operand 643 states and 1023 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 02:59:15,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 02:59:17,412 WARN L534 Checker$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 02:59:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:17,654 INFO L93 Difference]: Finished difference Result 1390 states and 2192 transitions. [2021-12-17 02:59:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:17,655 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 90 [2021-12-17 02:59:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:17,657 INFO L225 Difference]: With dead ends: 1390 [2021-12-17 02:59:17,657 INFO L226 Difference]: Without dead ends: 757 [2021-12-17 02:59:17,658 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 02:59:17,658 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 99 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:17,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 548 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 223 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 02:59:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2021-12-17 02:59:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 643. [2021-12-17 02:59:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5903426791277258) internal successors, (1021), 642 states have internal predecessors, (1021), 0 states have call successors, (0), 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 02:59:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1021 transitions. [2021-12-17 02:59:17,669 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1021 transitions. Word has length 90 [2021-12-17 02:59:17,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:17,669 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 1021 transitions. [2021-12-17 02:59:17,670 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 02:59:17,670 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1021 transitions. [2021-12-17 02:59:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 02:59:17,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:17,671 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1] [2021-12-17 02:59:17,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 02:59:17,671 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1427190015, now seen corresponding path program 1 times [2021-12-17 02:59:17,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:17,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749998017] [2021-12-17 02:59:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:17,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:17,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:17,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749998017] [2021-12-17 02:59:17,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749998017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:17,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:17,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:17,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410599435] [2021-12-17 02:59:17,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:17,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:17,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:17,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:17,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:17,813 INFO L87 Difference]: Start difference. First operand 643 states and 1021 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 02:59:19,831 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 02:59:20,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:20,096 INFO L93 Difference]: Finished difference Result 1476 states and 2304 transitions. [2021-12-17 02:59:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:20,097 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 90 [2021-12-17 02:59:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:20,099 INFO L225 Difference]: With dead ends: 1476 [2021-12-17 02:59:20,099 INFO L226 Difference]: Without dead ends: 843 [2021-12-17 02:59:20,100 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 02:59:20,100 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 120 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:20,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 272 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 02:59:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2021-12-17 02:59:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 643. [2021-12-17 02:59:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5700934579439252) internal successors, (1008), 642 states have internal predecessors, (1008), 0 states have call successors, (0), 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 02:59:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1008 transitions. [2021-12-17 02:59:20,112 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1008 transitions. Word has length 90 [2021-12-17 02:59:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:20,112 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 1008 transitions. [2021-12-17 02:59:20,112 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 02:59:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1008 transitions. [2021-12-17 02:59:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 02:59:20,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:20,114 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 02:59:20,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 02:59:20,114 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:20,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash -867307524, now seen corresponding path program 1 times [2021-12-17 02:59:20,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:20,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842251792] [2021-12-17 02:59:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:20,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:20,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:20,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842251792] [2021-12-17 02:59:20,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842251792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:20,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:20,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:20,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414992166] [2021-12-17 02:59:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:20,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:20,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:20,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:20,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:20,255 INFO L87 Difference]: Start difference. First operand 643 states and 1008 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 02:59:22,268 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 02:59:24,285 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 02:59:24,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:24,520 INFO L93 Difference]: Finished difference Result 1166 states and 1810 transitions. [2021-12-17 02:59:24,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:24,521 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 90 [2021-12-17 02:59:24,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:24,523 INFO L225 Difference]: With dead ends: 1166 [2021-12-17 02:59:24,523 INFO L226 Difference]: Without dead ends: 757 [2021-12-17 02:59:24,524 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 02:59:24,524 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 92 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:24,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 544 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 223 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 02:59:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2021-12-17 02:59:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 643. [2021-12-17 02:59:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5669781931464175) internal successors, (1006), 642 states have internal predecessors, (1006), 0 states have call successors, (0), 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 02:59:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1006 transitions. [2021-12-17 02:59:24,536 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1006 transitions. Word has length 90 [2021-12-17 02:59:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:24,537 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 1006 transitions. [2021-12-17 02:59:24,537 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 02:59:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1006 transitions. [2021-12-17 02:59:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 02:59:24,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:24,538 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1] [2021-12-17 02:59:24,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 02:59:24,539 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:24,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash -905662693, now seen corresponding path program 2 times [2021-12-17 02:59:24,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:24,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671253854] [2021-12-17 02:59:24,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:24,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:24,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:24,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671253854] [2021-12-17 02:59:24,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671253854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:24,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:24,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:24,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756252513] [2021-12-17 02:59:24,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:24,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:24,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:24,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:24,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:24,746 INFO L87 Difference]: Start difference. First operand 643 states and 1006 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 02:59:26,759 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 02:59:28,782 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 02:59:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:28,960 INFO L93 Difference]: Finished difference Result 1318 states and 2051 transitions. [2021-12-17 02:59:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:28,961 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 90 [2021-12-17 02:59:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:28,963 INFO L225 Difference]: With dead ends: 1318 [2021-12-17 02:59:28,963 INFO L226 Difference]: Without dead ends: 685 [2021-12-17 02:59:28,963 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 02:59:28,964 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 45 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 494 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 02:59:28,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 494 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 02:59:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-17 02:59:28,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 643. [2021-12-17 02:59:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5638629283489096) internal successors, (1004), 642 states have internal predecessors, (1004), 0 states have call successors, (0), 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 02:59:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1004 transitions. [2021-12-17 02:59:28,974 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1004 transitions. Word has length 90 [2021-12-17 02:59:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:28,975 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 1004 transitions. [2021-12-17 02:59:28,975 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 02:59:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1004 transitions. [2021-12-17 02:59:28,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 02:59:28,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:28,976 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 02:59:28,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 02:59:28,976 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:28,977 INFO L85 PathProgramCache]: Analyzing trace with hash -619161030, now seen corresponding path program 1 times [2021-12-17 02:59:28,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:28,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771066316] [2021-12-17 02:59:28,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:28,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:29,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:29,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771066316] [2021-12-17 02:59:29,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771066316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:29,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:29,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:29,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567354640] [2021-12-17 02:59:29,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:29,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:29,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:29,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:29,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:29,141 INFO L87 Difference]: Start difference. First operand 643 states and 1004 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 02:59:31,155 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 02:59:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:31,394 INFO L93 Difference]: Finished difference Result 1330 states and 2049 transitions. [2021-12-17 02:59:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:31,395 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 90 [2021-12-17 02:59:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:31,397 INFO L225 Difference]: With dead ends: 1330 [2021-12-17 02:59:31,397 INFO L226 Difference]: Without dead ends: 921 [2021-12-17 02:59:31,398 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 02:59:31,398 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 115 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 500 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 02:59:31,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 500 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-17 02:59:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 691. [2021-12-17 02:59:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.5521739130434782) internal successors, (1071), 690 states have internal predecessors, (1071), 0 states have call successors, (0), 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 02:59:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1071 transitions. [2021-12-17 02:59:31,411 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1071 transitions. Word has length 90 [2021-12-17 02:59:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:31,411 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1071 transitions. [2021-12-17 02:59:31,412 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 02:59:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1071 transitions. [2021-12-17 02:59:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-17 02:59:31,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:31,413 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1] [2021-12-17 02:59:31,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 02:59:31,413 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1766488070, now seen corresponding path program 1 times [2021-12-17 02:59:31,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:31,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761087237] [2021-12-17 02:59:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:31,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:31,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:31,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761087237] [2021-12-17 02:59:31,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761087237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:31,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:31,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:31,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139603222] [2021-12-17 02:59:31,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:31,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:31,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:31,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:31,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:31,542 INFO L87 Difference]: Start difference. First operand 691 states and 1071 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 02:59:33,550 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 02:59:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:33,783 INFO L93 Difference]: Finished difference Result 1572 states and 2404 transitions. [2021-12-17 02:59:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:33,784 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 91 [2021-12-17 02:59:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:33,786 INFO L225 Difference]: With dead ends: 1572 [2021-12-17 02:59:33,786 INFO L226 Difference]: Without dead ends: 891 [2021-12-17 02:59:33,787 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 02:59:33,787 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 118 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 294 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 02:59:33,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 294 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:33,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-12-17 02:59:33,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 691. [2021-12-17 02:59:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.5289855072463767) internal successors, (1055), 690 states have internal predecessors, (1055), 0 states have call successors, (0), 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 02:59:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1055 transitions. [2021-12-17 02:59:33,799 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1055 transitions. Word has length 91 [2021-12-17 02:59:33,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:33,800 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1055 transitions. [2021-12-17 02:59:33,800 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 02:59:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1055 transitions. [2021-12-17 02:59:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-17 02:59:33,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:33,801 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2021-12-17 02:59:33,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 02:59:33,801 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:33,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1788503491, now seen corresponding path program 1 times [2021-12-17 02:59:33,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:33,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554680338] [2021-12-17 02:59:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:33,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:33,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:33,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554680338] [2021-12-17 02:59:33,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554680338] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:33,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:33,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:33,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416180401] [2021-12-17 02:59:33,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:33,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:33,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:33,918 INFO L87 Difference]: Start difference. First operand 691 states and 1055 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 02:59:35,925 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 02:59:37,937 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 02:59:38,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:38,259 INFO L93 Difference]: Finished difference Result 1240 states and 1883 transitions. [2021-12-17 02:59:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:38,260 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 91 [2021-12-17 02:59:38,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:38,262 INFO L225 Difference]: With dead ends: 1240 [2021-12-17 02:59:38,262 INFO L226 Difference]: Without dead ends: 799 [2021-12-17 02:59:38,264 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 02:59:38,265 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 87 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:38,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 536 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 218 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 02:59:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2021-12-17 02:59:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 691. [2021-12-17 02:59:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.5260869565217392) internal successors, (1053), 690 states have internal predecessors, (1053), 0 states have call successors, (0), 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 02:59:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1053 transitions. [2021-12-17 02:59:38,283 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1053 transitions. Word has length 91 [2021-12-17 02:59:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:38,284 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1053 transitions. [2021-12-17 02:59:38,284 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 02:59:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1053 transitions. [2021-12-17 02:59:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-17 02:59:38,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:38,285 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2021-12-17 02:59:38,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 02:59:38,286 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:38,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash 891110213, now seen corresponding path program 1 times [2021-12-17 02:59:38,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:38,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902881899] [2021-12-17 02:59:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:38,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:38,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:38,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902881899] [2021-12-17 02:59:38,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902881899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:38,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:38,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:38,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569127815] [2021-12-17 02:59:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:38,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:38,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:38,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:38,410 INFO L87 Difference]: Start difference. First operand 691 states and 1053 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 02:59:40,417 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 02:59:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:40,656 INFO L93 Difference]: Finished difference Result 1354 states and 2045 transitions. [2021-12-17 02:59:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:40,656 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 91 [2021-12-17 02:59:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:40,659 INFO L225 Difference]: With dead ends: 1354 [2021-12-17 02:59:40,659 INFO L226 Difference]: Without dead ends: 913 [2021-12-17 02:59:40,660 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 02:59:40,661 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 110 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:40,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 494 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:40,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-17 02:59:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 694. [2021-12-17 02:59:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.5122655122655122) internal successors, (1048), 693 states have internal predecessors, (1048), 0 states have call successors, (0), 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 02:59:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1048 transitions. [2021-12-17 02:59:40,689 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1048 transitions. Word has length 91 [2021-12-17 02:59:40,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:40,689 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1048 transitions. [2021-12-17 02:59:40,689 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 02:59:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1048 transitions. [2021-12-17 02:59:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-17 02:59:40,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:40,691 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1] [2021-12-17 02:59:40,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 02:59:40,691 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 232318586, now seen corresponding path program 1 times [2021-12-17 02:59:40,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:40,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491786929] [2021-12-17 02:59:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:40,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:40,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:40,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491786929] [2021-12-17 02:59:40,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491786929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:40,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:40,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:40,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335168355] [2021-12-17 02:59:40,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:40,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:40,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:40,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:40,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:40,867 INFO L87 Difference]: Start difference. First operand 694 states and 1048 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 02:59:42,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 02:59:44,895 WARN L534 Checker$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 02:59:45,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:45,119 INFO L93 Difference]: Finished difference Result 1486 states and 2235 transitions. [2021-12-17 02:59:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:45,120 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 02:59:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:45,122 INFO L225 Difference]: With dead ends: 1486 [2021-12-17 02:59:45,122 INFO L226 Difference]: Without dead ends: 802 [2021-12-17 02:59:45,123 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 02:59:45,123 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 89 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:45,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 534 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 218 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 02:59:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2021-12-17 02:59:45,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 694. [2021-12-17 02:59:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.5093795093795095) internal successors, (1046), 693 states have internal predecessors, (1046), 0 states have call successors, (0), 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 02:59:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1046 transitions. [2021-12-17 02:59:45,134 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1046 transitions. Word has length 92 [2021-12-17 02:59:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:45,135 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1046 transitions. [2021-12-17 02:59:45,135 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 02:59:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1046 transitions. [2021-12-17 02:59:45,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-17 02:59:45,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:45,136 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1] [2021-12-17 02:59:45,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 02:59:45,137 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1817069256, now seen corresponding path program 1 times [2021-12-17 02:59:45,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:45,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853829517] [2021-12-17 02:59:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:45,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:45,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:45,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853829517] [2021-12-17 02:59:45,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853829517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:45,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:45,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:45,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107278195] [2021-12-17 02:59:45,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:45,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:45,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:45,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:45,279 INFO L87 Difference]: Start difference. First operand 694 states and 1046 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 02:59:47,297 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 02:59:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:47,531 INFO L93 Difference]: Finished difference Result 1578 states and 2354 transitions. [2021-12-17 02:59:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:47,531 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 02:59:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:47,534 INFO L225 Difference]: With dead ends: 1578 [2021-12-17 02:59:47,534 INFO L226 Difference]: Without dead ends: 894 [2021-12-17 02:59:47,535 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 02:59:47,535 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 116 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 272 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 02:59:47,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 272 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-12-17 02:59:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 694. [2021-12-17 02:59:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.4891774891774892) internal successors, (1032), 693 states have internal predecessors, (1032), 0 states have call successors, (0), 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 02:59:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1032 transitions. [2021-12-17 02:59:47,547 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1032 transitions. Word has length 92 [2021-12-17 02:59:47,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:47,547 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1032 transitions. [2021-12-17 02:59:47,547 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 02:59:47,547 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1032 transitions. [2021-12-17 02:59:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-17 02:59:47,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:47,548 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1] [2021-12-17 02:59:47,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 02:59:47,549 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:47,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:47,549 INFO L85 PathProgramCache]: Analyzing trace with hash 750197537, now seen corresponding path program 1 times [2021-12-17 02:59:47,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:47,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206277116] [2021-12-17 02:59:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:47,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:47,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:47,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206277116] [2021-12-17 02:59:47,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206277116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:47,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:47,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:47,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127883970] [2021-12-17 02:59:47,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:47,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:47,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:47,684 INFO L87 Difference]: Start difference. First operand 694 states and 1032 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 02:59:49,695 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 02:59:51,712 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 02:59:51,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:51,923 INFO L93 Difference]: Finished difference Result 1468 states and 2181 transitions. [2021-12-17 02:59:51,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:51,924 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 02:59:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:51,926 INFO L225 Difference]: With dead ends: 1468 [2021-12-17 02:59:51,926 INFO L226 Difference]: Without dead ends: 784 [2021-12-17 02:59:51,927 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 02:59:51,927 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 80 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:51,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 520 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 207 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 02:59:51,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-12-17 02:59:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 694. [2021-12-17 02:59:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.4862914862914862) internal successors, (1030), 693 states have internal predecessors, (1030), 0 states have call successors, (0), 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 02:59:51,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1030 transitions. [2021-12-17 02:59:51,940 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1030 transitions. Word has length 93 [2021-12-17 02:59:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:51,940 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1030 transitions. [2021-12-17 02:59:51,940 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 02:59:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1030 transitions. [2021-12-17 02:59:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-17 02:59:51,941 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:51,942 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 02:59:51,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 02:59:51,942 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash 5025328, now seen corresponding path program 1 times [2021-12-17 02:59:51,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:51,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651596519] [2021-12-17 02:59:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:51,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:52,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:52,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651596519] [2021-12-17 02:59:52,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651596519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:52,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:52,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:52,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961863584] [2021-12-17 02:59:52,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:52,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:52,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:52,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:52,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:52,131 INFO L87 Difference]: Start difference. First operand 694 states and 1030 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 02:59:54,144 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 02:59:54,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:54,360 INFO L93 Difference]: Finished difference Result 1578 states and 2322 transitions. [2021-12-17 02:59:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:54,361 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 02:59:54,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:54,369 INFO L225 Difference]: With dead ends: 1578 [2021-12-17 02:59:54,369 INFO L226 Difference]: Without dead ends: 894 [2021-12-17 02:59:54,372 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 02:59:54,373 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 109 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:54,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 274 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 211 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:54,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-12-17 02:59:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 694. [2021-12-17 02:59:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.4704184704184704) internal successors, (1019), 693 states have internal predecessors, (1019), 0 states have call successors, (0), 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 02:59:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1019 transitions. [2021-12-17 02:59:54,405 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1019 transitions. Word has length 93 [2021-12-17 02:59:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:54,406 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1019 transitions. [2021-12-17 02:59:54,406 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 02:59:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1019 transitions. [2021-12-17 02:59:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-17 02:59:54,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:54,407 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, 1] [2021-12-17 02:59:54,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 02:59:54,408 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1551313797, now seen corresponding path program 1 times [2021-12-17 02:59:54,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:54,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381900715] [2021-12-17 02:59:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:54,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:54,569 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 02:59:54,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:54,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381900715] [2021-12-17 02:59:54,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381900715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:54,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:54,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:54,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263997481] [2021-12-17 02:59:54,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:54,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:54,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:54,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:54,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:54,572 INFO L87 Difference]: Start difference. First operand 694 states and 1019 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 02:59:56,587 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 02:59:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 02:59:56,836 INFO L93 Difference]: Finished difference Result 1656 states and 2414 transitions. [2021-12-17 02:59:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 02:59:56,837 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 02:59:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 02:59:56,839 INFO L225 Difference]: With dead ends: 1656 [2021-12-17 02:59:56,839 INFO L226 Difference]: Without dead ends: 972 [2021-12-17 02:59:56,840 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 02:59:56,840 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 107 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-17 02:59:56,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 272 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-17 02:59:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2021-12-17 02:59:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 760. [2021-12-17 02:59:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.458498023715415) internal successors, (1107), 759 states have internal predecessors, (1107), 0 states have call successors, (0), 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 02:59:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1107 transitions. [2021-12-17 02:59:56,853 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1107 transitions. Word has length 93 [2021-12-17 02:59:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 02:59:56,853 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 1107 transitions. [2021-12-17 02:59:56,853 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 02:59:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1107 transitions. [2021-12-17 02:59:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-17 02:59:56,855 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 02:59:56,855 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1] [2021-12-17 02:59:56,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 02:59:56,855 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 02:59:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 02:59:56,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1643683875, now seen corresponding path program 1 times [2021-12-17 02:59:56,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 02:59:56,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532237990] [2021-12-17 02:59:56,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 02:59:56,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 02:59:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 02:59:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-17 02:59:57,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 02:59:57,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532237990] [2021-12-17 02:59:57,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532237990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 02:59:57,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 02:59:57,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 02:59:57,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880037476] [2021-12-17 02:59:57,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 02:59:57,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 02:59:57,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 02:59:57,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 02:59:57,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 02:59:57,021 INFO L87 Difference]: Start difference. First operand 760 states and 1107 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 02:59:59,035 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 03:00:01,051 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 03:00:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:01,202 INFO L93 Difference]: Finished difference Result 1528 states and 2224 transitions. [2021-12-17 03:00:01,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:00:01,203 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 03:00:01,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:01,204 INFO L225 Difference]: With dead ends: 1528 [2021-12-17 03:00:01,205 INFO L226 Difference]: Without dead ends: 778 [2021-12-17 03:00:01,205 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 03:00:01,206 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 27 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:01,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 464 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:00:01,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2021-12-17 03:00:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 760. [2021-12-17 03:00:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.4558629776021081) internal successors, (1105), 759 states have internal predecessors, (1105), 0 states have call successors, (0), 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 03:00:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1105 transitions. [2021-12-17 03:00:01,222 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1105 transitions. Word has length 93 [2021-12-17 03:00:01,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:01,222 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 1105 transitions. [2021-12-17 03:00:01,222 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 03:00:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1105 transitions. [2021-12-17 03:00:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-17 03:00:01,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:01,223 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:01,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 03:00:01,224 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash 898511666, now seen corresponding path program 1 times [2021-12-17 03:00:01,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:01,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87835579] [2021-12-17 03:00:01,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:01,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 03:00:01,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:01,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87835579] [2021-12-17 03:00:01,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87835579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:01,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:01,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:01,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994570644] [2021-12-17 03:00:01,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:01,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:01,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:01,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:01,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:01,368 INFO L87 Difference]: Start difference. First operand 760 states and 1105 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 03:00:03,373 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 03:00:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:03,414 INFO L93 Difference]: Finished difference Result 1511 states and 2204 transitions. [2021-12-17 03:00:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 03:00:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:03,417 INFO L225 Difference]: With dead ends: 1511 [2021-12-17 03:00:03,417 INFO L226 Difference]: Without dead ends: 1026 [2021-12-17 03:00:03,417 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 03:00:03,418 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 121 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:03,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 474 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 03:00:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2021-12-17 03:00:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1026. [2021-12-17 03:00:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1025 states have (on average 1.4526829268292683) internal successors, (1489), 1025 states have internal predecessors, (1489), 0 states have call successors, (0), 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 03:00:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1489 transitions. [2021-12-17 03:00:03,437 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1489 transitions. Word has length 93 [2021-12-17 03:00:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:03,437 INFO L470 AbstractCegarLoop]: Abstraction has 1026 states and 1489 transitions. [2021-12-17 03:00:03,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 03:00:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1489 transitions. [2021-12-17 03:00:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-17 03:00:03,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:03,439 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:03,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-17 03:00:03,439 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1626536284, now seen corresponding path program 1 times [2021-12-17 03:00:03,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:03,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865050419] [2021-12-17 03:00:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:03,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-17 03:00:03,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:03,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865050419] [2021-12-17 03:00:03,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865050419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:03,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:03,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:03,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571200553] [2021-12-17 03:00:03,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:03,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:03,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:03,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:03,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:03,596 INFO L87 Difference]: Start difference. First operand 1026 states and 1489 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:05,603 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 03:00:05,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:05,644 INFO L93 Difference]: Finished difference Result 2018 states and 2935 transitions. [2021-12-17 03:00:05,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:05,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-17 03:00:05,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:05,647 INFO L225 Difference]: With dead ends: 2018 [2021-12-17 03:00:05,648 INFO L226 Difference]: Without dead ends: 1267 [2021-12-17 03:00:05,648 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 03:00:05,649 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 473 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 03:00:05,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 473 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 03:00:05,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2021-12-17 03:00:05,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1267. [2021-12-17 03:00:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1266 states have (on average 1.4502369668246446) internal successors, (1836), 1266 states have internal predecessors, (1836), 0 states have call successors, (0), 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 03:00:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1836 transitions. [2021-12-17 03:00:05,667 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1836 transitions. Word has length 95 [2021-12-17 03:00:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:05,667 INFO L470 AbstractCegarLoop]: Abstraction has 1267 states and 1836 transitions. [2021-12-17 03:00:05,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:05,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1836 transitions. [2021-12-17 03:00:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-17 03:00:05,669 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:05,669 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, 1] [2021-12-17 03:00:05,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 03:00:05,670 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash -782701753, now seen corresponding path program 1 times [2021-12-17 03:00:05,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:05,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568252941] [2021-12-17 03:00:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:05,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-17 03:00:05,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:05,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568252941] [2021-12-17 03:00:05,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568252941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:05,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:05,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:05,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788228743] [2021-12-17 03:00:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:05,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:05,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:05,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:05,811 INFO L87 Difference]: Start difference. First operand 1267 states and 1836 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 03:00:07,816 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 03:00:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:07,859 INFO L93 Difference]: Finished difference Result 2256 states and 3272 transitions. [2021-12-17 03:00:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 113 [2021-12-17 03:00:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:07,863 INFO L225 Difference]: With dead ends: 2256 [2021-12-17 03:00:07,863 INFO L226 Difference]: Without dead ends: 1264 [2021-12-17 03:00:07,864 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 03:00:07,864 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 128 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:07,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 469 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-17 03:00:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2021-12-17 03:00:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2021-12-17 03:00:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.4457640538400633) internal successors, (1826), 1263 states have internal predecessors, (1826), 0 states have call successors, (0), 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 03:00:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1826 transitions. [2021-12-17 03:00:07,881 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1826 transitions. Word has length 113 [2021-12-17 03:00:07,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:07,881 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1826 transitions. [2021-12-17 03:00:07,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 03:00:07,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1826 transitions. [2021-12-17 03:00:07,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-17 03:00:07,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:07,886 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, 1, 1, 1, 1] [2021-12-17 03:00:07,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 03:00:07,887 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:07,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:07,887 INFO L85 PathProgramCache]: Analyzing trace with hash -177582421, now seen corresponding path program 1 times [2021-12-17 03:00:07,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:07,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124276053] [2021-12-17 03:00:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:07,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-17 03:00:08,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:08,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124276053] [2021-12-17 03:00:08,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124276053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:08,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:08,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:00:08,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188989923] [2021-12-17 03:00:08,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:08,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:00:08,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:08,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:00:08,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:00:08,048 INFO L87 Difference]: Start difference. First operand 1264 states and 1826 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 03:00:10,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:00:11,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:00:11,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:11,754 INFO L93 Difference]: Finished difference Result 2617 states and 3752 transitions. [2021-12-17 03:00:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:00:11,755 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 116 [2021-12-17 03:00:11,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:11,759 INFO L225 Difference]: With dead ends: 2617 [2021-12-17 03:00:11,759 INFO L226 Difference]: Without dead ends: 1363 [2021-12-17 03:00:11,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:00:11,760 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:11,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 483 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-17 03:00:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2021-12-17 03:00:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1264. [2021-12-17 03:00:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.442596991290578) internal successors, (1822), 1263 states have internal predecessors, (1822), 0 states have call successors, (0), 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 03:00:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1822 transitions. [2021-12-17 03:00:11,779 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1822 transitions. Word has length 116 [2021-12-17 03:00:11,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:11,811 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1822 transitions. [2021-12-17 03:00:11,811 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 03:00:11,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1822 transitions. [2021-12-17 03:00:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 03:00:11,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:11,813 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:11,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 03:00:11,814 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:11,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:11,814 INFO L85 PathProgramCache]: Analyzing trace with hash 140767020, now seen corresponding path program 2 times [2021-12-17 03:00:11,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:11,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409849135] [2021-12-17 03:00:11,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:11,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-17 03:00:11,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:11,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409849135] [2021-12-17 03:00:11,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409849135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:11,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:11,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:00:11,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795327322] [2021-12-17 03:00:11,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:11,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:00:11,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:11,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:00:11,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:00:11,957 INFO L87 Difference]: Start difference. First operand 1264 states and 1822 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 03:00:13,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:00:15,988 WARN L534 Checker$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 03:00:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:16,257 INFO L93 Difference]: Finished difference Result 2840 states and 4069 transitions. [2021-12-17 03:00:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:00:16,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 131 [2021-12-17 03:00:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:16,261 INFO L225 Difference]: With dead ends: 2840 [2021-12-17 03:00:16,261 INFO L226 Difference]: Without dead ends: 1586 [2021-12-17 03:00:16,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:00:16,266 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:16,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 287 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 203 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-17 03:00:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-12-17 03:00:16,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1264. [2021-12-17 03:00:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.4235946159936659) internal successors, (1798), 1263 states have internal predecessors, (1798), 0 states have call successors, (0), 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 03:00:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1798 transitions. [2021-12-17 03:00:16,287 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1798 transitions. Word has length 131 [2021-12-17 03:00:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:16,288 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1798 transitions. [2021-12-17 03:00:16,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 03:00:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1798 transitions. [2021-12-17 03:00:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 03:00:16,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:16,290 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:16,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 03:00:16,290 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:16,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1336337806, now seen corresponding path program 1 times [2021-12-17 03:00:16,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:16,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828902491] [2021-12-17 03:00:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:16,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-17 03:00:16,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:16,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828902491] [2021-12-17 03:00:16,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828902491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:16,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:16,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:00:16,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849408223] [2021-12-17 03:00:16,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:16,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:00:16,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:16,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:00:16,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:00:16,466 INFO L87 Difference]: Start difference. First operand 1264 states and 1798 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 03:00:18,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 03:00:20,507 WARN L534 Checker$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 03:00:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:20,673 INFO L93 Difference]: Finished difference Result 2577 states and 3648 transitions. [2021-12-17 03:00:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:00:20,676 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 134 [2021-12-17 03:00:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:20,683 INFO L225 Difference]: With dead ends: 2577 [2021-12-17 03:00:20,683 INFO L226 Difference]: Without dead ends: 1323 [2021-12-17 03:00:20,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:00:20,685 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 37 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:20,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 468 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-17 03:00:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2021-12-17 03:00:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1264. [2021-12-17 03:00:20,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.4204275534441806) internal successors, (1794), 1263 states have internal predecessors, (1794), 0 states have call successors, (0), 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 03:00:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1794 transitions. [2021-12-17 03:00:20,712 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1794 transitions. Word has length 134 [2021-12-17 03:00:20,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:20,712 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1794 transitions. [2021-12-17 03:00:20,712 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 03:00:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1794 transitions. [2021-12-17 03:00:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 03:00:20,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:20,714 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:20,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-17 03:00:20,715 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:20,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:20,715 INFO L85 PathProgramCache]: Analyzing trace with hash 940864280, now seen corresponding path program 1 times [2021-12-17 03:00:20,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:20,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279598746] [2021-12-17 03:00:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:20,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-17 03:00:20,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:00:20,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279598746] [2021-12-17 03:00:20,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279598746] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:20,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:20,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 03:00:20,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621143766] [2021-12-17 03:00:20,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:20,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:00:20,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:00:20,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:00:20,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:00:20,888 INFO L87 Difference]: Start difference. First operand 1264 states and 1794 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 03:00:22,910 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 03:00:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:23,182 INFO L93 Difference]: Finished difference Result 2836 states and 4008 transitions. [2021-12-17 03:00:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:00:23,182 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 135 [2021-12-17 03:00:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:23,186 INFO L225 Difference]: With dead ends: 2836 [2021-12-17 03:00:23,186 INFO L226 Difference]: Without dead ends: 1582 [2021-12-17 03:00:23,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:00:23,188 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 106 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:23,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 269 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 03:00:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2021-12-17 03:00:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1264. [2021-12-17 03:00:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 1.4022169437846397) internal successors, (1771), 1263 states have internal predecessors, (1771), 0 states have call successors, (0), 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 03:00:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1771 transitions. [2021-12-17 03:00:23,235 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1771 transitions. Word has length 135 [2021-12-17 03:00:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:23,236 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1771 transitions. [2021-12-17 03:00:23,236 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 03:00:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1771 transitions. [2021-12-17 03:00:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-17 03:00:23,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:23,238 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:23,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-17 03:00:23,238 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash -272550210, now seen corresponding path program 1 times [2021-12-17 03:00:23,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:00:23,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907982955] [2021-12-17 03:00:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:23,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:00:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 03:00:24,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 03:00:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 03:00:24,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 03:00:24,398 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 03:00:24,399 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 03:00:24,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-17 03:00:24,404 INFO L732 BasicCegarLoop]: Path program histogram: [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 03:00:24,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 03:00:24,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:00:24 BoogieIcfgContainer [2021-12-17 03:00:24,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 03:00:24,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 03:00:24,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 03:00:24,507 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 03:00:24,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:58:42" (3/4) ... [2021-12-17 03:00:24,509 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 03:00:24,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 03:00:24,510 INFO L158 Benchmark]: Toolchain (without parser) took 105678.44ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 108.9MB in the beginning and 84.8MB in the end (delta: 24.1MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,510 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 129.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.53ms. Allocated memory is still 138.4MB. Free memory was 108.9MB in the beginning and 93.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.26ms. Allocated memory is still 138.4MB. Free memory was 93.2MB in the beginning and 88.2MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,510 INFO L158 Benchmark]: Boogie Preprocessor took 94.26ms. Allocated memory is still 138.4MB. Free memory was 88.2MB in the beginning and 81.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,511 INFO L158 Benchmark]: RCFGBuilder took 2926.11ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 81.9MB in the beginning and 90.6MB in the end (delta: -8.6MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,511 INFO L158 Benchmark]: TraceAbstraction took 102061.66ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 90.6MB in the beginning and 84.8MB in the end (delta: 5.8MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2021-12-17 03:00:24,511 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 201.3MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 03:00:24,512 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 92.3MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 129.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.53ms. Allocated memory is still 138.4MB. Free memory was 108.9MB in the beginning and 93.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.26ms. Allocated memory is still 138.4MB. Free memory was 93.2MB in the beginning and 88.2MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.26ms. Allocated memory is still 138.4MB. Free memory was 88.2MB in the beginning and 81.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2926.11ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 81.9MB in the beginning and 90.6MB in the end (delta: -8.6MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 102061.66ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 90.6MB in the beginning and 84.8MB in the end (delta: 5.8MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 201.3MB. Free memory is still 84.8MB. 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: 1668]: 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 1353. 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 = (BUF_MEM *)__VERIFIER_nondet_ulong(); [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 ; [L1116] int tmp___4 ; [L1117] int tmp___5 ; [L1118] int tmp___6 ; [L1119] int tmp___7 ; [L1120] int tmp___8 ; [L1121] long tmp___9 ; [L1123] int blastFlag ; [L1126] blastFlag = 0 [L1127] s->hit=__VERIFIER_nondet_int () [L1128] s->state = 12292 [L1129] tmp = __VERIFIER_nondet_int() [L1130] cb = (void (*)())((void *)0) [L1131] ret = -1 [L1132] skip = 0 [L1133] EXPR s->info_callback VAL [={0:0}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->info_callback={0:1}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0] [L1133] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1134] EXPR s->info_callback [L1134] cb = s->info_callback [L1142] EXPR s->in_handshake [L1142] s->in_handshake += 1 [L1143] COND FALSE !(tmp___1 & 12288) VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=12292, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0] [L1156] COND TRUE s->state == 12292 [L1259] s->new_session = 1 [L1260] s->state = 4096 [L1261] EXPR s->ctx [L1261] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1261] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1266] s->server = 0 VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0] [L1267] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0] [L1272] EXPR s->version VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->version=6, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0] [L1272] COND FALSE !((s->version & 65280) != 768) [L1278] s->type = 4096 [L1279] EXPR s->init_buf VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->init_buf={0:-12}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0] [L1279] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1291] tmp___4 = __VERIFIER_nondet_int() [L1292] COND FALSE !(! tmp___4) [L1298] tmp___5 = __VERIFIER_nondet_int() [L1299] COND FALSE !(! tmp___5) [L1305] s->state = 4368 [L1306] EXPR s->ctx [L1306] EXPR (s->ctx)->stats.sess_connect [L1306] (s->ctx)->stats.sess_connect += 1 [L1307] s->init_num = 0 VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967300, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1171] COND TRUE s->state == 4368 [L1311] s->shutdown = 0 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 0 [L1314] blastFlag = 1 VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1318] COND FALSE !(ret <= 0) [L1323] s->state = 4384 [L1324] s->init_num = 0 [L1325] EXPR s->bbio [L1325] EXPR s->wbio VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->bbio={0:15}, s->wbio={0:13}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1325] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967300, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1177] COND TRUE s->state == 4384 [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 1 [L1335] blastFlag = 2 VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1339] COND FALSE !(ret <= 0) [L1344] s->hit VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->hit=0, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1344] COND FALSE !(s->hit) [L1347] s->state = 4400 VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1349] s->init_num = 0 VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967300, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1183] COND TRUE s->state == 4400 [L1353] EXPR s->s3 [L1353] EXPR (s->s3)->tmp.new_cipher [L1353] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:1}, ((s->s3)->tmp.new_cipher)->algorithms=4294967306, (s->s3)->tmp.new_cipher={-10:0}, blastFlag=2, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1353] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 2 [L1358] blastFlag = 3 VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1362] COND FALSE !(ret <= 0) VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1368] s->state = 4416 [L1369] s->init_num = 0 VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967300, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state VAL [={0:1}, blastFlag=3, buf={0:7}, init=1, ret=19, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1189] COND TRUE s->state == 4416 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND TRUE blastFlag == 3 [L1375] blastFlag = 4 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13] [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4432 [L1385] s->init_num = 0 [L1386] tmp___6 = __VERIFIER_nondet_int() [L1387] COND FALSE !(! tmp___6) VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967300, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1195] COND TRUE s->state == 4432 [L1396] ret = __VERIFIER_nondet_int() [L1397] COND FALSE !(blastFlag == 5) VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1402] COND FALSE !(ret <= 0) [L1407] s->state = 4448 [L1408] s->init_num = 0 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967300, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->s3={-11:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1153] COND TRUE 1 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1195] COND FALSE !(s->state == 4432) [L1198] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1198] COND FALSE !(s->state == 4433) [L1201] EXPR s->state VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=21, s={-8:0}, s={-8:0}, s->state=4448, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1201] COND TRUE s->state == 4448 [L1412] ret = __VERIFIER_nondet_int() [L1413] COND TRUE blastFlag == 4 VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=0, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] [L1668] reach_error() VAL [={0:1}, blastFlag=4, buf={0:7}, init=1, ret=0, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4448, tmp=0, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-13, tmp___6=-15] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 101.9s, OverallIterations: 32, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 94.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 43 mSolverCounterUnknown, 2895 SdHoareTripleChecker+Valid, 93.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2895 mSDsluCounter, 13218 SdHoareTripleChecker+Invalid, 92.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7361 mSDsCounter, 584 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5199 IncrementalHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 584 mSolverCounterUnsat, 5857 mSDtfsCounter, 5199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1267occurred in iteration=26, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 3845 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2821 NumberOfCodeBlocks, 2821 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2653 ConstructedInterpolants, 0 QuantifiedInterpolants, 5875 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 2512/2512 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 03:00:24,560 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.01.i.cil-2.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 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 03:00:26,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 03:00:26,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 03:00:26,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 03:00:26,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 03:00:26,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 03:00:26,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 03:00:26,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 03:00:26,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 03:00:26,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 03:00:26,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 03:00:26,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 03:00:26,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 03:00:26,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 03:00:26,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 03:00:26,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 03:00:26,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 03:00:26,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 03:00:26,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 03:00:26,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 03:00:26,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 03:00:26,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 03:00:26,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 03:00:26,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 03:00:26,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 03:00:26,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 03:00:26,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 03:00:26,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 03:00:26,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 03:00:26,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 03:00:26,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 03:00:26,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 03:00:26,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 03:00:26,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 03:00:26,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 03:00:26,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 03:00:26,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 03:00:26,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 03:00:26,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 03:00:26,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 03:00:26,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 03:00:26,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 03:00:26,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 03:00:26,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 03:00:26,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 03:00:26,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 03:00:26,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 03:00:26,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 03:00:26,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 03:00:26,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 03:00:26,695 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 03:00:26,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 03:00:26,695 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 03:00:26,696 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 03:00:26,697 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 03:00:26,697 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 03:00:26,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 03:00:26,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 03:00:26,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 03:00:26,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 03:00:26,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 03:00:26,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 03:00:26,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:00:26,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 03:00:26,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 03:00:26,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 03:00:26,698 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 03:00:26,698 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 03:00:26,699 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 03:00:26,699 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 03:00:26,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 03:00:26,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 03:00:26,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 03:00:26,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781939b227b3ba0a20ad2d0323c2d13ae338349fb5c0bf292cccf74fd05cfb42 [2021-12-17 03:00:26,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 03:00:27,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 03:00:27,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 03:00:27,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 03:00:27,009 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 03:00:27,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-12-17 03:00:27,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40d7410f/cdde7bf8471b43a4ba3a06afc9aa941d/FLAG39cbbaf21 [2021-12-17 03:00:27,487 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 03:00:27,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-2.c [2021-12-17 03:00:27,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40d7410f/cdde7bf8471b43a4ba3a06afc9aa941d/FLAG39cbbaf21 [2021-12-17 03:00:27,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40d7410f/cdde7bf8471b43a4ba3a06afc9aa941d [2021-12-17 03:00:27,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 03:00:27,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 03:00:27,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 03:00:27,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 03:00:27,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 03:00:27,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:00:27" (1/1) ... [2021-12-17 03:00:27,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d942376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:27, skipping insertion in model container [2021-12-17 03:00:27,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:00:27" (1/1) ... [2021-12-17 03:00:27,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 03:00:27,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:00:28,165 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.01.i.cil-2.c[65520,65533] [2021-12-17 03:00:28,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:00:28,192 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-17 03:00:28,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:00:28,256 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.01.i.cil-2.c[65520,65533] [2021-12-17 03:00:28,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:00:28,272 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 03:00:28,334 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.01.i.cil-2.c[65520,65533] [2021-12-17 03:00:28,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:00:28,365 INFO L208 MainTranslator]: Completed translation [2021-12-17 03:00:28,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28 WrapperNode [2021-12-17 03:00:28,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 03:00:28,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 03:00:28,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 03:00:28,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 03:00:28,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,449 INFO L137 Inliner]: procedures = 35, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 694 [2021-12-17 03:00:28,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 03:00:28,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 03:00:28,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 03:00:28,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 03:00:28,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 03:00:28,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 03:00:28,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 03:00:28,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 03:00:28,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (1/1) ... [2021-12-17 03:00:28,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:00:28,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:00:28,562 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 03:00:28,598 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 03:00:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 03:00:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 03:00:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 03:00:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 03:00:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 03:00:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 03:00:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 03:00:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 03:00:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 03:00:28,747 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 03:00:28,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 03:00:28,758 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-17 03:00:35,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-17 03:00:35,164 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-17 03:00:35,164 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 03:00:35,169 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 03:00:35,169 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 03:00:35,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:00:35 BoogieIcfgContainer [2021-12-17 03:00:35,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 03:00:35,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 03:00:35,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 03:00:35,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 03:00:35,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:00:27" (1/3) ... [2021-12-17 03:00:35,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc25748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:00:35, skipping insertion in model container [2021-12-17 03:00:35,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:00:28" (2/3) ... [2021-12-17 03:00:35,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc25748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:00:35, skipping insertion in model container [2021-12-17 03:00:35,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:00:35" (3/3) ... [2021-12-17 03:00:35,179 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2021-12-17 03:00:35,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 03:00:35,183 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 03:00:35,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 03:00:35,243 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 03:00:35,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 03:00:35,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 03:00:35,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:35,268 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 03:00:35,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1457703967, now seen corresponding path program 1 times [2021-12-17 03:00:35,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:00:35,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532306961] [2021-12-17 03:00:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:35,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:00:35,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:00:35,290 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 03:00:35,343 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 03:00:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:36,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:00:36,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:00:36,440 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 03:00:36,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:00:36,441 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:00:36,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532306961] [2021-12-17 03:00:36,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532306961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:36,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:36,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:36,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71083057] [2021-12-17 03:00:36,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:36,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:36,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:00:36,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:36,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:36,476 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:36,582 INFO L93 Difference]: Finished difference Result 375 states and 626 transitions. [2021-12-17 03:00:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:36,584 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 03:00:36,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:36,595 INFO L225 Difference]: With dead ends: 375 [2021-12-17 03:00:36,596 INFO L226 Difference]: Without dead ends: 217 [2021-12-17 03:00:36,599 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 03:00:36,604 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 181 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:36,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 402 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 03:00:36,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-17 03:00:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-12-17 03:00:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 321 transitions. [2021-12-17 03:00:36,646 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 321 transitions. Word has length 24 [2021-12-17 03:00:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:36,646 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 321 transitions. [2021-12-17 03:00:36,647 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 03:00:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 321 transitions. [2021-12-17 03:00:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-17 03:00:36,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:36,648 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 03:00:36,672 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 03:00:36,855 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 03:00:36,856 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash 546953675, now seen corresponding path program 1 times [2021-12-17 03:00:36,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:00:36,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055887241] [2021-12-17 03:00:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:36,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:00:36,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:00:36,862 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 03:00:36,872 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 03:00:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:37,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:00:37,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:00:37,896 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 03:00:37,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:00:37,896 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:00:37,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055887241] [2021-12-17 03:00:37,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055887241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:37,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:37,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:37,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870237662] [2021-12-17 03:00:37,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:37,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:37,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:00:37,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:37,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:37,899 INFO L87 Difference]: Start difference. First operand 217 states and 321 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 03:00:39,918 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 03:00:40,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:40,039 INFO L93 Difference]: Finished difference Result 426 states and 636 transitions. [2021-12-17 03:00:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:40,040 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 03:00:40,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:40,042 INFO L225 Difference]: With dead ends: 426 [2021-12-17 03:00:40,042 INFO L226 Difference]: Without dead ends: 319 [2021-12-17 03:00:40,042 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 03:00:40,043 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 126 mSDsluCounter, 158 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 03:00:40,043 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 03:00:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-17 03:00:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-12-17 03:00:40,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.4779874213836477) internal successors, (470), 318 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 470 transitions. [2021-12-17 03:00:40,068 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 470 transitions. Word has length 39 [2021-12-17 03:00:40,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:40,069 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 470 transitions. [2021-12-17 03:00:40,069 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 03:00:40,069 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 470 transitions. [2021-12-17 03:00:40,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-17 03:00:40,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:40,071 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 03:00:40,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 03:00:40,279 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 03:00:40,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:40,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1711683715, now seen corresponding path program 1 times [2021-12-17 03:00:40,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:00:40,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594586741] [2021-12-17 03:00:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:40,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:00:40,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:00:40,284 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 03:00:40,298 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 03:00:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:41,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:00:41,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:00:41,347 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 03:00:41,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:00:41,347 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:00:41,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594586741] [2021-12-17 03:00:41,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594586741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:41,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:41,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:41,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919219020] [2021-12-17 03:00:41,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:41,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:41,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:00:41,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:41,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:41,349 INFO L87 Difference]: Start difference. First operand 319 states and 470 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 03:00:43,372 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 03:00:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:43,501 INFO L93 Difference]: Finished difference Result 632 states and 937 transitions. [2021-12-17 03:00:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:43,502 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 03:00:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:43,505 INFO L225 Difference]: With dead ends: 632 [2021-12-17 03:00:43,505 INFO L226 Difference]: Without dead ends: 423 [2021-12-17 03:00:43,506 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 03:00:43,507 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 128 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:43,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 474 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:00:43,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2021-12-17 03:00:43,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2021-12-17 03:00:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 1.4739336492890995) internal successors, (622), 422 states have internal predecessors, (622), 0 states have call successors, (0), 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 03:00:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 622 transitions. [2021-12-17 03:00:43,539 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 622 transitions. Word has length 57 [2021-12-17 03:00:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:43,539 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 622 transitions. [2021-12-17 03:00:43,540 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 03:00:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 622 transitions. [2021-12-17 03:00:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-17 03:00:43,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:43,542 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 03:00:43,565 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 03:00:43,755 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 03:00:43,756 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:43,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:43,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1922596163, now seen corresponding path program 1 times [2021-12-17 03:00:43,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:00:43,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425334719] [2021-12-17 03:00:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:43,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:00:43,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:00:43,773 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 03:00:43,775 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 03:00:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:44,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:00:44,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:00:44,966 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 03:00:44,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:00:44,966 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:00:44,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425334719] [2021-12-17 03:00:44,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425334719] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:44,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:44,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:44,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170815494] [2021-12-17 03:00:44,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:44,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:44,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:00:44,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:44,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:44,968 INFO L87 Difference]: Start difference. First operand 423 states and 622 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 03:00:46,988 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 03:00:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:47,082 INFO L93 Difference]: Finished difference Result 839 states and 1240 transitions. [2021-12-17 03:00:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:47,082 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 03:00:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:47,084 INFO L225 Difference]: With dead ends: 839 [2021-12-17 03:00:47,084 INFO L226 Difference]: Without dead ends: 526 [2021-12-17 03:00:47,085 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 03:00:47,086 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 128 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 473 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 03:00:47,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 473 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:00:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-12-17 03:00:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2021-12-17 03:00:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.4723809523809523) internal successors, (773), 525 states have internal predecessors, (773), 0 states have call successors, (0), 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 03:00:47,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 773 transitions. [2021-12-17 03:00:47,099 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 773 transitions. Word has length 77 [2021-12-17 03:00:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:47,099 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 773 transitions. [2021-12-17 03:00:47,099 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 03:00:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 773 transitions. [2021-12-17 03:00:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-17 03:00:47,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:47,102 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 03:00:47,126 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 03:00:47,326 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 03:00:47,326 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash -158208422, now seen corresponding path program 1 times [2021-12-17 03:00:47,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:00:47,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040558737] [2021-12-17 03:00:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:47,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:00:47,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:00:47,331 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 03:00:47,332 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 03:00:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:48,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:00:48,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:00:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-17 03:00:48,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:00:48,691 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 03:00:48,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040558737] [2021-12-17 03:00:48,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040558737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:00:48,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:00:48,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:00:48,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980913451] [2021-12-17 03:00:48,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:00:48,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:00:48,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 03:00:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:00:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:00:48,692 INFO L87 Difference]: Start difference. First operand 526 states and 773 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:50,714 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 03:00:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:00:50,806 INFO L93 Difference]: Finished difference Result 939 states and 1381 transitions. [2021-12-17 03:00:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:00:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-17 03:00:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:00:50,808 INFO L225 Difference]: With dead ends: 939 [2021-12-17 03:00:50,809 INFO L226 Difference]: Without dead ends: 523 [2021-12-17 03:00:50,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 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 03:00:50,810 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 128 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 03:00:50,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 469 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 03:00:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-12-17 03:00:50,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2021-12-17 03:00:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 522 states have (on average 1.4616858237547892) internal successors, (763), 522 states have internal predecessors, (763), 0 states have call successors, (0), 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 03:00:50,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 763 transitions. [2021-12-17 03:00:50,819 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 763 transitions. Word has length 98 [2021-12-17 03:00:50,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:00:50,820 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 763 transitions. [2021-12-17 03:00:50,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:00:50,820 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 763 transitions. [2021-12-17 03:00:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-17 03:00:50,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:00:50,822 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:00:50,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-17 03:00:51,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 03:00:51,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:00:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:00:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1855651051, now seen corresponding path program 1 times [2021-12-17 03:00:51,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 03:00:51,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032274672] [2021-12-17 03:00:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:00:51,037 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 03:00:51,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 03:00:51,038 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 03:00:51,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 03:00:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:00:53,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 03:00:53,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:00:55,185 INFO L354 Elim1Store]: treesize reduction 32, result has 78.5 percent of original size [2021-12-17 03:00:55,186 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 1482 treesize of output 1090 [2021-12-17 03:00:57,449 INFO L354 Elim1Store]: treesize reduction 1374, result has 25.4 percent of original size [2021-12-17 03:00:57,449 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 4114 treesize of output 2116 [2021-12-17 03:00:57,500 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 1711 treesize of output 1297 [2021-12-17 03:00:57,612 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:00:57,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1227 treesize of output 1095 [2021-12-17 03:00:57,648 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 1797 treesize of output 1599 [2021-12-17 03:00:57,715 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 1375 treesize of output 1263 [2021-12-17 03:00:57,961 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:00:57,962 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 1229 treesize of output 1053 [2021-12-17 03:00:58,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,409 INFO L244 Elim1Store]: Index analysis took 390 ms [2021-12-17 03:00:58,772 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 03:00:58,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:58,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,360 INFO L244 Elim1Store]: Index analysis took 471 ms [2021-12-17 03:00:59,664 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 03:00:59,725 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 135 treesize of output 115 [2021-12-17 03:00:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:00:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:01:00,103 INFO L244 Elim1Store]: Index analysis took 317 ms [2021-12-17 03:01:00,385 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 03:01:57,680 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 64 treesize of output 46 [2021-12-17 03:01:57,810 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2021-12-17 03:01:57,916 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2021-12-17 03:01:58,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 03:01:58,037 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 64 treesize of output 46 [2021-12-17 03:01:58,237 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2021-12-17 03:01:59,078 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 03:01:59,147 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-17 03:01:59,191 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 03:01:59,255 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 03:02:01,897 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:02:01,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 197 treesize of output 237 [2021-12-17 03:07:06,310 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 03:07:07,767 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 03:07:09,206 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 03:07:09,425 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 03:07:10,982 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 03:07:19,118 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 03:07:19,215 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 03:08:18,919 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 03:08:22,954 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 03:08:23,238 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 03:08:25,489 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 03:08:31,499 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 03:08:31,619 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 03:08:42,131 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 03:08:42,390 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 03:08:43,557 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 03:08:43,769 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 03:08:44,151 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 03:08:45,502 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 03:08:45,711 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 03:10:02,742 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 03:10:03,579 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 03:10:03,724 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 03:10:04,804 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 03:11:56,555 WARN L227 SmtUtils]: Spent 49.91s on a formula simplification that was a NOOP. DAG size: 1801 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-17 03:11:56,557 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 03:11:56,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 30 select indices, 30 select index equivalence classes, 0 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 435 case distinctions, treesize of input 2141 treesize of output 5543 Killed by 15