./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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-simplified/s3_clnt_1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0237d7665f4c4183d0858d7577c1caaad788a36b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:23:30,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:23:30,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:23:30,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:23:30,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:23:30,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:23:30,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:23:30,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:23:30,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:23:30,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:23:30,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:23:30,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:23:30,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:23:30,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:23:30,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:23:30,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:23:30,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:23:30,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:23:30,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:23:30,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:23:30,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:23:30,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:23:30,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:23:30,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:23:30,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:23:30,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:23:30,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:23:30,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:23:30,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:23:30,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:23:30,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:23:30,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:23:30,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:23:30,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:23:30,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:23:30,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:23:30,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:23:30,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:23:30,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:23:30,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:23:30,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:23:30,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:23:31,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:23:31,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:23:31,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:23:31,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:23:31,010 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:23:31,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:23:31,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:23:31,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:23:31,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:23:31,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:23:31,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:23:31,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:23:31,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:23:31,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:23:31,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:23:31,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:23:31,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:23:31,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:23:31,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:23:31,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:23:31,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:23:31,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:23:31,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:23:31,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:23:31,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:23:31,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:23:31,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:23:31,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:23:31,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:23:31,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 0237d7665f4c4183d0858d7577c1caaad788a36b [2020-10-19 22:23:31,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:23:31,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:23:31,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:23:31,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:23:31,236 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:23:31,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-10-19 22:23:31,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6adf3ae5/fcd3feb734164a539b86c248c25ba4a9/FLAG0ffe5d4a7 [2020-10-19 22:23:31,811 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:23:31,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-10-19 22:23:31,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6adf3ae5/fcd3feb734164a539b86c248c25ba4a9/FLAG0ffe5d4a7 [2020-10-19 22:23:32,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6adf3ae5/fcd3feb734164a539b86c248c25ba4a9 [2020-10-19 22:23:32,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:23:32,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:23:32,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:23:32,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:23:32,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:23:32,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558f773c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32, skipping insertion in model container [2020-10-19 22:23:32,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:23:32,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:23:32,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:23:32,582 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:23:32,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:23:32,686 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:23:32,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32 WrapperNode [2020-10-19 22:23:32,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:23:32,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:23:32,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:23:32,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:23:32,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:23:32,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:23:32,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:23:32,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:23:32,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... [2020-10-19 22:23:32,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:23:32,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:23:32,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:23:32,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:23:32,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:23:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:23:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:23:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:23:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:23:33,011 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:23:33,661 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-19 22:23:33,661 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-19 22:23:33,673 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:23:33,673 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:23:33,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:33 BoogieIcfgContainer [2020-10-19 22:23:33,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:23:33,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:23:33,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:23:33,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:23:33,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:23:32" (1/3) ... [2020-10-19 22:23:33,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a295a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:23:33, skipping insertion in model container [2020-10-19 22:23:33,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:32" (2/3) ... [2020-10-19 22:23:33,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a295a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:23:33, skipping insertion in model container [2020-10-19 22:23:33,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:33" (3/3) ... [2020-10-19 22:23:33,684 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2020-10-19 22:23:33,697 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:23:33,704 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:23:33,719 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:23:33,746 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:23:33,746 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:23:33,747 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:23:33,747 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:23:33,747 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:23:33,747 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:23:33,747 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:23:33,748 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:23:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-10-19 22:23:33,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 22:23:33,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:33,775 INFO L422 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] [2020-10-19 22:23:33,775 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:33,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:33,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2020-10-19 22:23:33,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:33,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266432476] [2020-10-19 22:23:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:23:34,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266432476] [2020-10-19 22:23:34,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:34,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:34,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131871245] [2020-10-19 22:23:34,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:34,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:34,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:34,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:34,072 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-10-19 22:23:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:34,372 INFO L93 Difference]: Finished difference Result 251 states and 426 transitions. [2020-10-19 22:23:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:34,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-19 22:23:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:34,398 INFO L225 Difference]: With dead ends: 251 [2020-10-19 22:23:34,399 INFO L226 Difference]: Without dead ends: 114 [2020-10-19 22:23:34,404 INFO L677 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 [2020-10-19 22:23:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-19 22:23:34,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-19 22:23:34,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-19 22:23:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2020-10-19 22:23:34,452 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 24 [2020-10-19 22:23:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:34,453 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2020-10-19 22:23:34,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2020-10-19 22:23:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-19 22:23:34,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:34,455 INFO L422 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] [2020-10-19 22:23:34,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:23:34,456 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:34,456 INFO L82 PathProgramCache]: Analyzing trace with hash 561711387, now seen corresponding path program 1 times [2020-10-19 22:23:34,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:34,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480033648] [2020-10-19 22:23:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:23:34,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480033648] [2020-10-19 22:23:34,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:34,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:34,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99256030] [2020-10-19 22:23:34,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:34,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:34,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:34,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:34,546 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand 3 states. [2020-10-19 22:23:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:34,730 INFO L93 Difference]: Finished difference Result 236 states and 358 transitions. [2020-10-19 22:23:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:34,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-19 22:23:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:34,733 INFO L225 Difference]: With dead ends: 236 [2020-10-19 22:23:34,733 INFO L226 Difference]: Without dead ends: 132 [2020-10-19 22:23:34,735 INFO L677 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 [2020-10-19 22:23:34,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-19 22:23:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2020-10-19 22:23:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-19 22:23:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 191 transitions. [2020-10-19 22:23:34,749 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 191 transitions. Word has length 37 [2020-10-19 22:23:34,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:34,749 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 191 transitions. [2020-10-19 22:23:34,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 191 transitions. [2020-10-19 22:23:34,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-19 22:23:34,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:34,752 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:34,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:23:34,753 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:34,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:34,753 INFO L82 PathProgramCache]: Analyzing trace with hash 356447844, now seen corresponding path program 1 times [2020-10-19 22:23:34,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:34,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795752649] [2020-10-19 22:23:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:23:34,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795752649] [2020-10-19 22:23:34,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:34,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:34,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125582750] [2020-10-19 22:23:34,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:34,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:34,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:34,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:34,862 INFO L87 Difference]: Start difference. First operand 129 states and 191 transitions. Second operand 3 states. [2020-10-19 22:23:35,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:35,039 INFO L93 Difference]: Finished difference Result 269 states and 404 transitions. [2020-10-19 22:23:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:35,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-19 22:23:35,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:35,042 INFO L225 Difference]: With dead ends: 269 [2020-10-19 22:23:35,042 INFO L226 Difference]: Without dead ends: 150 [2020-10-19 22:23:35,043 INFO L677 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 [2020-10-19 22:23:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-19 22:23:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2020-10-19 22:23:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-19 22:23:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions. [2020-10-19 22:23:35,055 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 51 [2020-10-19 22:23:35,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:35,055 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 213 transitions. [2020-10-19 22:23:35,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions. [2020-10-19 22:23:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:23:35,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:35,058 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-10-19 22:23:35,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:23:35,058 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:35,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1231511209, now seen corresponding path program 1 times [2020-10-19 22:23:35,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:35,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639044210] [2020-10-19 22:23:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:23:35,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639044210] [2020-10-19 22:23:35,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:35,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:35,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995553383] [2020-10-19 22:23:35,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:35,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:35,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:35,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:35,180 INFO L87 Difference]: Start difference. First operand 146 states and 213 transitions. Second operand 3 states. [2020-10-19 22:23:35,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:35,420 INFO L93 Difference]: Finished difference Result 333 states and 501 transitions. [2020-10-19 22:23:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:35,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:23:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:35,425 INFO L225 Difference]: With dead ends: 333 [2020-10-19 22:23:35,426 INFO L226 Difference]: Without dead ends: 196 [2020-10-19 22:23:35,429 INFO L677 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 [2020-10-19 22:23:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-19 22:23:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 187. [2020-10-19 22:23:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-19 22:23:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 263 transitions. [2020-10-19 22:23:35,454 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 263 transitions. Word has length 68 [2020-10-19 22:23:35,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:35,458 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 263 transitions. [2020-10-19 22:23:35,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 263 transitions. [2020-10-19 22:23:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:23:35,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:35,466 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-10-19 22:23:35,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:23:35,467 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:35,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1258017753, now seen corresponding path program 1 times [2020-10-19 22:23:35,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:35,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803079848] [2020-10-19 22:23:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:35,573 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:23:35,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803079848] [2020-10-19 22:23:35,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:35,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:35,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188421921] [2020-10-19 22:23:35,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:35,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:35,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:35,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:35,576 INFO L87 Difference]: Start difference. First operand 187 states and 263 transitions. Second operand 3 states. [2020-10-19 22:23:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:35,706 INFO L93 Difference]: Finished difference Result 387 states and 552 transitions. [2020-10-19 22:23:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:35,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:23:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:35,710 INFO L225 Difference]: With dead ends: 387 [2020-10-19 22:23:35,710 INFO L226 Difference]: Without dead ends: 210 [2020-10-19 22:23:35,711 INFO L677 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 [2020-10-19 22:23:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-19 22:23:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2020-10-19 22:23:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-19 22:23:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 287 transitions. [2020-10-19 22:23:35,720 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 287 transitions. Word has length 68 [2020-10-19 22:23:35,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:35,721 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 287 transitions. [2020-10-19 22:23:35,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 287 transitions. [2020-10-19 22:23:35,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-19 22:23:35,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:35,723 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:35,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:23:35,723 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:35,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:35,724 INFO L82 PathProgramCache]: Analyzing trace with hash -901961809, now seen corresponding path program 1 times [2020-10-19 22:23:35,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:35,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073019313] [2020-10-19 22:23:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:23:35,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073019313] [2020-10-19 22:23:35,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:35,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:35,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855722498] [2020-10-19 22:23:35,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:35,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:35,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:35,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:35,836 INFO L87 Difference]: Start difference. First operand 206 states and 287 transitions. Second operand 3 states. [2020-10-19 22:23:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:36,010 INFO L93 Difference]: Finished difference Result 426 states and 602 transitions. [2020-10-19 22:23:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:36,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-10-19 22:23:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:36,012 INFO L225 Difference]: With dead ends: 426 [2020-10-19 22:23:36,013 INFO L226 Difference]: Without dead ends: 230 [2020-10-19 22:23:36,013 INFO L677 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 [2020-10-19 22:23:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-19 22:23:36,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2020-10-19 22:23:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-19 22:23:36,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 313 transitions. [2020-10-19 22:23:36,021 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 313 transitions. Word has length 84 [2020-10-19 22:23:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:36,022 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 313 transitions. [2020-10-19 22:23:36,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 313 transitions. [2020-10-19 22:23:36,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 22:23:36,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:36,024 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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] [2020-10-19 22:23:36,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:23:36,024 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:36,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:36,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2020-10-19 22:23:36,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:36,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375096907] [2020-10-19 22:23:36,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:23:36,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375096907] [2020-10-19 22:23:36,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:36,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:36,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843365202] [2020-10-19 22:23:36,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:36,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:36,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:36,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:36,079 INFO L87 Difference]: Start difference. First operand 227 states and 313 transitions. Second operand 3 states. [2020-10-19 22:23:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:36,122 INFO L93 Difference]: Finished difference Result 658 states and 909 transitions. [2020-10-19 22:23:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:36,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 22:23:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:36,126 INFO L225 Difference]: With dead ends: 658 [2020-10-19 22:23:36,126 INFO L226 Difference]: Without dead ends: 441 [2020-10-19 22:23:36,127 INFO L677 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 [2020-10-19 22:23:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-10-19 22:23:36,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2020-10-19 22:23:36,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-19 22:23:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 604 transitions. [2020-10-19 22:23:36,155 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 604 transitions. Word has length 104 [2020-10-19 22:23:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:36,156 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 604 transitions. [2020-10-19 22:23:36,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 604 transitions. [2020-10-19 22:23:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 22:23:36,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:36,158 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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] [2020-10-19 22:23:36,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:23:36,158 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:36,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:36,159 INFO L82 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2020-10-19 22:23:36,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:36,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693070235] [2020-10-19 22:23:36,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 22:23:36,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693070235] [2020-10-19 22:23:36,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:36,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:36,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834967653] [2020-10-19 22:23:36,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:36,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:36,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:36,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:36,202 INFO L87 Difference]: Start difference. First operand 441 states and 604 transitions. Second operand 3 states. [2020-10-19 22:23:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:36,229 INFO L93 Difference]: Finished difference Result 893 states and 1222 transitions. [2020-10-19 22:23:36,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:36,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 22:23:36,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:36,232 INFO L225 Difference]: With dead ends: 893 [2020-10-19 22:23:36,233 INFO L226 Difference]: Without dead ends: 462 [2020-10-19 22:23:36,234 INFO L677 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 [2020-10-19 22:23:36,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-10-19 22:23:36,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2020-10-19 22:23:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-19 22:23:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 631 transitions. [2020-10-19 22:23:36,247 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 631 transitions. Word has length 104 [2020-10-19 22:23:36,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:36,247 INFO L481 AbstractCegarLoop]: Abstraction has 462 states and 631 transitions. [2020-10-19 22:23:36,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:36,247 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 631 transitions. [2020-10-19 22:23:36,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 22:23:36,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:36,249 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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] [2020-10-19 22:23:36,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:23:36,249 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:36,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:36,250 INFO L82 PathProgramCache]: Analyzing trace with hash 178348971, now seen corresponding path program 1 times [2020-10-19 22:23:36,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:36,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41044626] [2020-10-19 22:23:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-19 22:23:36,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41044626] [2020-10-19 22:23:36,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:36,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:36,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450587788] [2020-10-19 22:23:36,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:36,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:36,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:36,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:36,311 INFO L87 Difference]: Start difference. First operand 462 states and 631 transitions. Second operand 3 states. [2020-10-19 22:23:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:36,336 INFO L93 Difference]: Finished difference Result 941 states and 1283 transitions. [2020-10-19 22:23:36,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:36,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 22:23:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:36,340 INFO L225 Difference]: With dead ends: 941 [2020-10-19 22:23:36,340 INFO L226 Difference]: Without dead ends: 489 [2020-10-19 22:23:36,341 INFO L677 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 [2020-10-19 22:23:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-10-19 22:23:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2020-10-19 22:23:36,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-10-19 22:23:36,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 665 transitions. [2020-10-19 22:23:36,356 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 665 transitions. Word has length 104 [2020-10-19 22:23:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:36,357 INFO L481 AbstractCegarLoop]: Abstraction has 489 states and 665 transitions. [2020-10-19 22:23:36,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 665 transitions. [2020-10-19 22:23:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:23:36,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:36,359 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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] [2020-10-19 22:23:36,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:23:36,359 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:36,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:36,359 INFO L82 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2020-10-19 22:23:36,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:36,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698147192] [2020-10-19 22:23:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:23:36,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698147192] [2020-10-19 22:23:36,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:36,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:36,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002931017] [2020-10-19 22:23:36,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:36,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:36,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:36,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:36,430 INFO L87 Difference]: Start difference. First operand 489 states and 665 transitions. Second operand 3 states. [2020-10-19 22:23:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:36,468 INFO L93 Difference]: Finished difference Result 706 states and 964 transitions. [2020-10-19 22:23:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:36,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:23:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:36,473 INFO L225 Difference]: With dead ends: 706 [2020-10-19 22:23:36,473 INFO L226 Difference]: Without dead ends: 704 [2020-10-19 22:23:36,474 INFO L677 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 [2020-10-19 22:23:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-10-19 22:23:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2020-10-19 22:23:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-10-19 22:23:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 962 transitions. [2020-10-19 22:23:36,491 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 962 transitions. Word has length 106 [2020-10-19 22:23:36,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:36,492 INFO L481 AbstractCegarLoop]: Abstraction has 704 states and 962 transitions. [2020-10-19 22:23:36,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:36,492 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 962 transitions. [2020-10-19 22:23:36,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-19 22:23:36,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:36,494 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 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] [2020-10-19 22:23:36,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:23:36,495 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1913560025, now seen corresponding path program 1 times [2020-10-19 22:23:36,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:36,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197983661] [2020-10-19 22:23:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:23:36,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197983661] [2020-10-19 22:23:36,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:36,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:36,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633734769] [2020-10-19 22:23:36,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:36,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:36,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:36,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:36,566 INFO L87 Difference]: Start difference. First operand 704 states and 962 transitions. Second operand 3 states. [2020-10-19 22:23:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:36,712 INFO L93 Difference]: Finished difference Result 1451 states and 2013 transitions. [2020-10-19 22:23:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:36,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-10-19 22:23:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:36,717 INFO L225 Difference]: With dead ends: 1451 [2020-10-19 22:23:36,718 INFO L226 Difference]: Without dead ends: 784 [2020-10-19 22:23:36,720 INFO L677 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 [2020-10-19 22:23:36,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-19 22:23:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 773. [2020-10-19 22:23:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2020-10-19 22:23:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1046 transitions. [2020-10-19 22:23:36,743 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1046 transitions. Word has length 131 [2020-10-19 22:23:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:36,743 INFO L481 AbstractCegarLoop]: Abstraction has 773 states and 1046 transitions. [2020-10-19 22:23:36,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1046 transitions. [2020-10-19 22:23:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-19 22:23:36,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:36,747 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 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] [2020-10-19 22:23:36,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:23:36,747 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:36,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:36,748 INFO L82 PathProgramCache]: Analyzing trace with hash 296450083, now seen corresponding path program 1 times [2020-10-19 22:23:36,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:36,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409257046] [2020-10-19 22:23:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-10-19 22:23:36,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409257046] [2020-10-19 22:23:36,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:36,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:36,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783667378] [2020-10-19 22:23:36,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:36,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:36,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:36,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:36,843 INFO L87 Difference]: Start difference. First operand 773 states and 1046 transitions. Second operand 3 states. [2020-10-19 22:23:37,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:37,088 INFO L93 Difference]: Finished difference Result 1662 states and 2311 transitions. [2020-10-19 22:23:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:37,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-10-19 22:23:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:37,095 INFO L225 Difference]: With dead ends: 1662 [2020-10-19 22:23:37,095 INFO L226 Difference]: Without dead ends: 923 [2020-10-19 22:23:37,097 INFO L677 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 [2020-10-19 22:23:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-10-19 22:23:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 890. [2020-10-19 22:23:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-10-19 22:23:37,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1223 transitions. [2020-10-19 22:23:37,127 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1223 transitions. Word has length 152 [2020-10-19 22:23:37,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:37,127 INFO L481 AbstractCegarLoop]: Abstraction has 890 states and 1223 transitions. [2020-10-19 22:23:37,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1223 transitions. [2020-10-19 22:23:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-19 22:23:37,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:37,134 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:37,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:23:37,135 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:37,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:37,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2080513012, now seen corresponding path program 1 times [2020-10-19 22:23:37,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:37,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858909613] [2020-10-19 22:23:37,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-10-19 22:23:37,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858909613] [2020-10-19 22:23:37,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:37,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:37,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349754371] [2020-10-19 22:23:37,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:37,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:37,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:37,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:37,271 INFO L87 Difference]: Start difference. First operand 890 states and 1223 transitions. Second operand 3 states. [2020-10-19 22:23:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:37,468 INFO L93 Difference]: Finished difference Result 1833 states and 2515 transitions. [2020-10-19 22:23:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:37,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-10-19 22:23:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:37,476 INFO L225 Difference]: With dead ends: 1833 [2020-10-19 22:23:37,477 INFO L226 Difference]: Without dead ends: 980 [2020-10-19 22:23:37,479 INFO L677 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 [2020-10-19 22:23:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-10-19 22:23:37,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2020-10-19 22:23:37,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2020-10-19 22:23:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1322 transitions. [2020-10-19 22:23:37,510 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1322 transitions. Word has length 188 [2020-10-19 22:23:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:37,511 INFO L481 AbstractCegarLoop]: Abstraction has 974 states and 1322 transitions. [2020-10-19 22:23:37,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1322 transitions. [2020-10-19 22:23:37,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-19 22:23:37,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:37,515 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:37,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:23:37,516 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:37,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1653754506, now seen corresponding path program 1 times [2020-10-19 22:23:37,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:37,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744191878] [2020-10-19 22:23:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-10-19 22:23:37,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744191878] [2020-10-19 22:23:37,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:37,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:37,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997018883] [2020-10-19 22:23:37,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:37,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:37,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:37,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:37,655 INFO L87 Difference]: Start difference. First operand 974 states and 1322 transitions. Second operand 3 states. [2020-10-19 22:23:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:37,886 INFO L93 Difference]: Finished difference Result 2013 states and 2740 transitions. [2020-10-19 22:23:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:37,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-10-19 22:23:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:37,895 INFO L225 Difference]: With dead ends: 2013 [2020-10-19 22:23:37,896 INFO L226 Difference]: Without dead ends: 1076 [2020-10-19 22:23:37,897 INFO L677 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 [2020-10-19 22:23:37,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-10-19 22:23:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1067. [2020-10-19 22:23:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-10-19 22:23:37,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1430 transitions. [2020-10-19 22:23:37,933 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1430 transitions. Word has length 188 [2020-10-19 22:23:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:37,934 INFO L481 AbstractCegarLoop]: Abstraction has 1067 states and 1430 transitions. [2020-10-19 22:23:37,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1430 transitions. [2020-10-19 22:23:37,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-19 22:23:37,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:37,942 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:37,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:23:37,943 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:37,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1229348372, now seen corresponding path program 1 times [2020-10-19 22:23:37,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:37,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601835165] [2020-10-19 22:23:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-10-19 22:23:38,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601835165] [2020-10-19 22:23:38,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:38,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:38,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073063556] [2020-10-19 22:23:38,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:38,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:38,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:38,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:38,114 INFO L87 Difference]: Start difference. First operand 1067 states and 1430 transitions. Second operand 3 states. [2020-10-19 22:23:38,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:38,174 INFO L93 Difference]: Finished difference Result 3124 states and 4191 transitions. [2020-10-19 22:23:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:38,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-10-19 22:23:38,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:38,190 INFO L225 Difference]: With dead ends: 3124 [2020-10-19 22:23:38,191 INFO L226 Difference]: Without dead ends: 2094 [2020-10-19 22:23:38,197 INFO L677 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 [2020-10-19 22:23:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2020-10-19 22:23:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2092. [2020-10-19 22:23:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-10-19 22:23:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2805 transitions. [2020-10-19 22:23:38,281 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2805 transitions. Word has length 218 [2020-10-19 22:23:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:38,282 INFO L481 AbstractCegarLoop]: Abstraction has 2092 states and 2805 transitions. [2020-10-19 22:23:38,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2805 transitions. [2020-10-19 22:23:38,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-19 22:23:38,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:38,293 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:38,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:23:38,294 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:38,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:38,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1790048150, now seen corresponding path program 1 times [2020-10-19 22:23:38,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:38,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164761422] [2020-10-19 22:23:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-19 22:23:38,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164761422] [2020-10-19 22:23:38,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:38,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:38,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818612108] [2020-10-19 22:23:38,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:38,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:38,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:38,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:38,407 INFO L87 Difference]: Start difference. First operand 2092 states and 2805 transitions. Second operand 3 states. [2020-10-19 22:23:38,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:38,580 INFO L93 Difference]: Finished difference Result 4372 states and 5889 transitions. [2020-10-19 22:23:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:38,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-10-19 22:23:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:38,593 INFO L225 Difference]: With dead ends: 4372 [2020-10-19 22:23:38,593 INFO L226 Difference]: Without dead ends: 2317 [2020-10-19 22:23:38,596 INFO L677 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 [2020-10-19 22:23:38,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-10-19 22:23:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-10-19 22:23:38,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-10-19 22:23:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3048 transitions. [2020-10-19 22:23:38,667 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3048 transitions. Word has length 218 [2020-10-19 22:23:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:38,668 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 3048 transitions. [2020-10-19 22:23:38,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3048 transitions. [2020-10-19 22:23:38,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-19 22:23:38,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:38,676 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:38,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 22:23:38,676 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:38,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:38,677 INFO L82 PathProgramCache]: Analyzing trace with hash 678419774, now seen corresponding path program 1 times [2020-10-19 22:23:38,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:38,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68279933] [2020-10-19 22:23:38,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2020-10-19 22:23:38,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68279933] [2020-10-19 22:23:38,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:38,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:38,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287052837] [2020-10-19 22:23:38,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:38,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:38,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:38,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:38,805 INFO L87 Difference]: Start difference. First operand 2305 states and 3048 transitions. Second operand 3 states. [2020-10-19 22:23:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:38,974 INFO L93 Difference]: Finished difference Result 4684 states and 6204 transitions. [2020-10-19 22:23:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:38,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2020-10-19 22:23:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:38,990 INFO L225 Difference]: With dead ends: 4684 [2020-10-19 22:23:38,991 INFO L226 Difference]: Without dead ends: 2416 [2020-10-19 22:23:38,996 INFO L677 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 [2020-10-19 22:23:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2020-10-19 22:23:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2404. [2020-10-19 22:23:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-10-19 22:23:39,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3162 transitions. [2020-10-19 22:23:39,086 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3162 transitions. Word has length 242 [2020-10-19 22:23:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:39,086 INFO L481 AbstractCegarLoop]: Abstraction has 2404 states and 3162 transitions. [2020-10-19 22:23:39,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3162 transitions. [2020-10-19 22:23:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-19 22:23:39,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:39,099 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:39,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 22:23:39,100 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:39,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:39,101 INFO L82 PathProgramCache]: Analyzing trace with hash -101941725, now seen corresponding path program 1 times [2020-10-19 22:23:39,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:39,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882589963] [2020-10-19 22:23:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:23:39,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882589963] [2020-10-19 22:23:39,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:39,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:39,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382103829] [2020-10-19 22:23:39,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:39,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:39,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:39,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:39,258 INFO L87 Difference]: Start difference. First operand 2404 states and 3162 transitions. Second operand 3 states. [2020-10-19 22:23:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:39,499 INFO L93 Difference]: Finished difference Result 5071 states and 6804 transitions. [2020-10-19 22:23:39,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:39,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-10-19 22:23:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:39,513 INFO L225 Difference]: With dead ends: 5071 [2020-10-19 22:23:39,513 INFO L226 Difference]: Without dead ends: 2704 [2020-10-19 22:23:39,517 INFO L677 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 [2020-10-19 22:23:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2020-10-19 22:23:39,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2644. [2020-10-19 22:23:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2020-10-19 22:23:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3444 transitions. [2020-10-19 22:23:39,586 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3444 transitions. Word has length 253 [2020-10-19 22:23:39,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:39,587 INFO L481 AbstractCegarLoop]: Abstraction has 2644 states and 3444 transitions. [2020-10-19 22:23:39,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3444 transitions. [2020-10-19 22:23:39,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-19 22:23:39,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:39,595 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:39,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 22:23:39,596 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:39,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2020-10-19 22:23:39,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:39,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455334358] [2020-10-19 22:23:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:23:39,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455334358] [2020-10-19 22:23:39,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122811071] [2020-10-19 22:23:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:40,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:40,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:40,187 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:23:40,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:23:40,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:23:40,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120922651] [2020-10-19 22:23:40,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:23:40,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:40,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:23:40,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:23:40,189 INFO L87 Difference]: Start difference. First operand 2644 states and 3444 transitions. Second operand 4 states. [2020-10-19 22:23:40,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:40,614 INFO L93 Difference]: Finished difference Result 8230 states and 10854 transitions. [2020-10-19 22:23:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 22:23:40,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2020-10-19 22:23:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:40,639 INFO L225 Difference]: With dead ends: 8230 [2020-10-19 22:23:40,639 INFO L226 Difference]: Without dead ends: 5617 [2020-10-19 22:23:40,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5617 states. [2020-10-19 22:23:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5617 to 5225. [2020-10-19 22:23:40,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5225 states. [2020-10-19 22:23:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 6803 transitions. [2020-10-19 22:23:40,805 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 6803 transitions. Word has length 292 [2020-10-19 22:23:40,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:40,806 INFO L481 AbstractCegarLoop]: Abstraction has 5225 states and 6803 transitions. [2020-10-19 22:23:40,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:23:40,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 6803 transitions. [2020-10-19 22:23:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-19 22:23:40,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:40,817 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:41,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:41,032 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash -909348798, now seen corresponding path program 1 times [2020-10-19 22:23:41,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:41,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578591375] [2020-10-19 22:23:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2020-10-19 22:23:41,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578591375] [2020-10-19 22:23:41,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:41,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:41,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197353847] [2020-10-19 22:23:41,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:41,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:41,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:41,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:41,496 INFO L87 Difference]: Start difference. First operand 5225 states and 6803 transitions. Second operand 3 states. [2020-10-19 22:23:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:41,626 INFO L93 Difference]: Finished difference Result 12630 states and 16480 transitions. [2020-10-19 22:23:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:41,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-10-19 22:23:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:41,688 INFO L225 Difference]: With dead ends: 12630 [2020-10-19 22:23:41,688 INFO L226 Difference]: Without dead ends: 7442 [2020-10-19 22:23:41,699 INFO L677 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 [2020-10-19 22:23:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2020-10-19 22:23:41,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 7440. [2020-10-19 22:23:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7440 states. [2020-10-19 22:23:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 9694 transitions. [2020-10-19 22:23:41,912 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 9694 transitions. Word has length 293 [2020-10-19 22:23:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:41,913 INFO L481 AbstractCegarLoop]: Abstraction has 7440 states and 9694 transitions. [2020-10-19 22:23:41,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 9694 transitions. [2020-10-19 22:23:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-19 22:23:41,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:41,933 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:41,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 22:23:41,933 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:41,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:41,934 INFO L82 PathProgramCache]: Analyzing trace with hash 967762485, now seen corresponding path program 1 times [2020-10-19 22:23:41,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:41,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628857637] [2020-10-19 22:23:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-19 22:23:42,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628857637] [2020-10-19 22:23:42,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:42,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:42,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650102063] [2020-10-19 22:23:42,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:42,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:42,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:42,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:42,109 INFO L87 Difference]: Start difference. First operand 7440 states and 9694 transitions. Second operand 3 states. [2020-10-19 22:23:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:42,475 INFO L93 Difference]: Finished difference Result 14837 states and 19310 transitions. [2020-10-19 22:23:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:42,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2020-10-19 22:23:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:42,491 INFO L225 Difference]: With dead ends: 14837 [2020-10-19 22:23:42,491 INFO L226 Difference]: Without dead ends: 7434 [2020-10-19 22:23:42,500 INFO L677 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 [2020-10-19 22:23:42,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2020-10-19 22:23:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 6417. [2020-10-19 22:23:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6417 states. [2020-10-19 22:23:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 8241 transitions. [2020-10-19 22:23:42,644 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 8241 transitions. Word has length 294 [2020-10-19 22:23:42,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:42,645 INFO L481 AbstractCegarLoop]: Abstraction has 6417 states and 8241 transitions. [2020-10-19 22:23:42,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 8241 transitions. [2020-10-19 22:23:42,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-19 22:23:42,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:42,658 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:42,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 22:23:42,658 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:42,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:42,659 INFO L82 PathProgramCache]: Analyzing trace with hash 980531743, now seen corresponding path program 1 times [2020-10-19 22:23:42,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:42,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992706593] [2020-10-19 22:23:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 730 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:42,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992706593] [2020-10-19 22:23:42,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:42,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:42,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347520296] [2020-10-19 22:23:42,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:42,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:42,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:42,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:42,852 INFO L87 Difference]: Start difference. First operand 6417 states and 8241 transitions. Second operand 3 states. [2020-10-19 22:23:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:43,527 INFO L93 Difference]: Finished difference Result 13943 states and 18132 transitions. [2020-10-19 22:23:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:43,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 334 [2020-10-19 22:23:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:43,550 INFO L225 Difference]: With dead ends: 13943 [2020-10-19 22:23:43,550 INFO L226 Difference]: Without dead ends: 7563 [2020-10-19 22:23:43,564 INFO L677 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 [2020-10-19 22:23:43,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2020-10-19 22:23:43,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6759. [2020-10-19 22:23:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2020-10-19 22:23:43,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 8727 transitions. [2020-10-19 22:23:43,776 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 8727 transitions. Word has length 334 [2020-10-19 22:23:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:43,777 INFO L481 AbstractCegarLoop]: Abstraction has 6759 states and 8727 transitions. [2020-10-19 22:23:43,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 8727 transitions. [2020-10-19 22:23:43,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-19 22:23:43,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:43,795 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:43,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 22:23:43,796 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:43,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:43,796 INFO L82 PathProgramCache]: Analyzing trace with hash 650041975, now seen corresponding path program 1 times [2020-10-19 22:23:43,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:43,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952550370] [2020-10-19 22:23:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:44,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952550370] [2020-10-19 22:23:44,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766868068] [2020-10-19 22:23:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:44,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:44,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2020-10-19 22:23:44,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:23:44,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 22:23:44,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619044164] [2020-10-19 22:23:44,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:44,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:44,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:44,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:44,634 INFO L87 Difference]: Start difference. First operand 6759 states and 8727 transitions. Second operand 3 states. [2020-10-19 22:23:44,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:44,724 INFO L93 Difference]: Finished difference Result 15418 states and 19861 transitions. [2020-10-19 22:23:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:44,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 372 [2020-10-19 22:23:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:44,739 INFO L225 Difference]: With dead ends: 15418 [2020-10-19 22:23:44,740 INFO L226 Difference]: Without dead ends: 8696 [2020-10-19 22:23:44,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2020-10-19 22:23:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 8696. [2020-10-19 22:23:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8696 states. [2020-10-19 22:23:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8696 states to 8696 states and 11164 transitions. [2020-10-19 22:23:44,901 INFO L78 Accepts]: Start accepts. Automaton has 8696 states and 11164 transitions. Word has length 372 [2020-10-19 22:23:44,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:44,902 INFO L481 AbstractCegarLoop]: Abstraction has 8696 states and 11164 transitions. [2020-10-19 22:23:44,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 8696 states and 11164 transitions. [2020-10-19 22:23:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-19 22:23:44,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:44,916 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:45,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-19 22:23:45,128 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:45,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:45,132 INFO L82 PathProgramCache]: Analyzing trace with hash -590181313, now seen corresponding path program 1 times [2020-10-19 22:23:45,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:45,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368044446] [2020-10-19 22:23:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:45,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368044446] [2020-10-19 22:23:45,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537093921] [2020-10-19 22:23:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:45,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:45,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:45,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:23:45,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:23:45,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852198829] [2020-10-19 22:23:45,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:23:45,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:23:45,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:23:45,907 INFO L87 Difference]: Start difference. First operand 8696 states and 11164 transitions. Second operand 4 states. [2020-10-19 22:23:46,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,337 INFO L93 Difference]: Finished difference Result 18915 states and 24222 transitions. [2020-10-19 22:23:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:23:46,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-10-19 22:23:46,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,361 INFO L225 Difference]: With dead ends: 18915 [2020-10-19 22:23:46,361 INFO L226 Difference]: Without dead ends: 10260 [2020-10-19 22:23:46,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2020-10-19 22:23:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 9228. [2020-10-19 22:23:46,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9228 states. [2020-10-19 22:23:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 11723 transitions. [2020-10-19 22:23:46,591 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 11723 transitions. Word has length 374 [2020-10-19 22:23:46,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,591 INFO L481 AbstractCegarLoop]: Abstraction has 9228 states and 11723 transitions. [2020-10-19 22:23:46,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:23:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 11723 transitions. [2020-10-19 22:23:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-19 22:23:46,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,652 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:46,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-10-19 22:23:46,853 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1273645298, now seen corresponding path program 1 times [2020-10-19 22:23:46,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801015672] [2020-10-19 22:23:46,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-10-19 22:23:47,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801015672] [2020-10-19 22:23:47,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:47,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:47,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891339595] [2020-10-19 22:23:47,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:47,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:47,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:47,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:47,032 INFO L87 Difference]: Start difference. First operand 9228 states and 11723 transitions. Second operand 3 states. [2020-10-19 22:23:47,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:47,256 INFO L93 Difference]: Finished difference Result 17032 states and 21420 transitions. [2020-10-19 22:23:47,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:47,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-10-19 22:23:47,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:47,264 INFO L225 Difference]: With dead ends: 17032 [2020-10-19 22:23:47,264 INFO L226 Difference]: Without dead ends: 3795 [2020-10-19 22:23:47,276 INFO L677 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 [2020-10-19 22:23:47,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2020-10-19 22:23:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3567. [2020-10-19 22:23:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-10-19 22:23:47,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4431 transitions. [2020-10-19 22:23:47,336 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4431 transitions. Word has length 413 [2020-10-19 22:23:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:47,336 INFO L481 AbstractCegarLoop]: Abstraction has 3567 states and 4431 transitions. [2020-10-19 22:23:47,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4431 transitions. [2020-10-19 22:23:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-10-19 22:23:47,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:47,348 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:47,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-19 22:23:47,348 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 381067605, now seen corresponding path program 1 times [2020-10-19 22:23:47,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:47,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756715772] [2020-10-19 22:23:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-10-19 22:23:47,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756715772] [2020-10-19 22:23:47,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038335712] [2020-10-19 22:23:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:47,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:47,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:47,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-10-19 22:23:47,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:23:47,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:23:47,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978367717] [2020-10-19 22:23:47,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:23:47,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:47,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:23:47,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:23:47,834 INFO L87 Difference]: Start difference. First operand 3567 states and 4431 transitions. Second operand 4 states. [2020-10-19 22:23:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:48,040 INFO L93 Difference]: Finished difference Result 3781 states and 4699 transitions. [2020-10-19 22:23:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:23:48,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 442 [2020-10-19 22:23:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:48,041 INFO L225 Difference]: With dead ends: 3781 [2020-10-19 22:23:48,041 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:23:48,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:23:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:23:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:23:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:23:48,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 442 [2020-10-19 22:23:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:48,049 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:23:48,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:23:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:23:48,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:23:48,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:48,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:23:48,564 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 89 [2020-10-19 22:23:49,310 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-10-19 22:23:50,019 INFO L270 CegarLoopResult]: At program point L168(lines 164 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-10-19 22:23:50,020 INFO L270 CegarLoopResult]: At program point L102(lines 101 515) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse0 .cse1))) [2020-10-19 22:23:50,020 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 22:23:50,020 INFO L274 CegarLoopResult]: For program point L400(lines 400 402) no Hoare annotation was computed. [2020-10-19 22:23:50,020 INFO L274 CegarLoopResult]: For program point L367(lines 367 369) no Hoare annotation was computed. [2020-10-19 22:23:50,020 INFO L274 CegarLoopResult]: For program point L170(lines 170 492) no Hoare annotation was computed. [2020-10-19 22:23:50,020 INFO L274 CegarLoopResult]: For program point L137(lines 137 503) no Hoare annotation was computed. [2020-10-19 22:23:50,020 INFO L274 CegarLoopResult]: For program point L104(lines 104 514) no Hoare annotation was computed. [2020-10-19 22:23:50,021 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-10-19 22:23:50,021 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-10-19 22:23:50,021 INFO L270 CegarLoopResult]: At program point L138(lines 134 504) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-10-19 22:23:50,021 INFO L277 CegarLoopResult]: At program point L535(lines 97 536) the Hoare annotation is: true [2020-10-19 22:23:50,021 INFO L274 CegarLoopResult]: For program point L271(lines 271 275) no Hoare annotation was computed. [2020-10-19 22:23:50,021 INFO L274 CegarLoopResult]: For program point L238(lines 238 241) no Hoare annotation was computed. [2020-10-19 22:23:50,021 INFO L274 CegarLoopResult]: For program point L271-2(lines 271 275) no Hoare annotation was computed. [2020-10-19 22:23:50,021 INFO L274 CegarLoopResult]: For program point L305(lines 305 308) no Hoare annotation was computed. [2020-10-19 22:23:50,022 INFO L270 CegarLoopResult]: At program point L206(lines 104 514) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse0) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2020-10-19 22:23:50,022 INFO L274 CegarLoopResult]: For program point L173(lines 173 491) no Hoare annotation was computed. [2020-10-19 22:23:50,022 INFO L274 CegarLoopResult]: For program point L140(lines 140 502) no Hoare annotation was computed. [2020-10-19 22:23:50,022 INFO L274 CegarLoopResult]: For program point L107(lines 107 513) no Hoare annotation was computed. [2020-10-19 22:23:50,022 INFO L270 CegarLoopResult]: At program point L174(lines 170 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-10-19 22:23:50,022 INFO L274 CegarLoopResult]: For program point L473(lines 473 475) no Hoare annotation was computed. [2020-10-19 22:23:50,022 INFO L274 CegarLoopResult]: For program point L440(lines 440 451) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L407(lines 407 421) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L407-1(lines 407 421) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L440-2(lines 440 451) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L176(lines 176 490) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L143(lines 143 501) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L110(lines 110 512) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L540(lines 540 542) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L274 CegarLoopResult]: For program point L540-2(lines 540 542) no Hoare annotation was computed. [2020-10-19 22:23:50,023 INFO L270 CegarLoopResult]: At program point L144(lines 140 502) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L343(lines 343 345) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L211(lines 211 213) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L211-2(lines 211 213) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L377(lines 377 379) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L179(lines 179 489) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L146(lines 146 500) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L113(lines 113 511) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L274 CegarLoopResult]: For program point L411(lines 411 417) no Hoare annotation was computed. [2020-10-19 22:23:50,024 INFO L270 CegarLoopResult]: At program point L180(lines 176 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L445(lines 445 448) no Hoare annotation was computed. [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L313(lines 313 315) no Hoare annotation was computed. [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L280-1(lines 280 290) no Hoare annotation was computed. [2020-10-19 22:23:50,025 INFO L277 CegarLoopResult]: At program point L545(lines 12 547) the Hoare annotation is: true [2020-10-19 22:23:50,025 INFO L270 CegarLoopResult]: At program point L314(lines 76 546) the Hoare annotation is: false [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L182(lines 182 488) no Hoare annotation was computed. [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L149(lines 149 499) no Hoare annotation was computed. [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L116(lines 116 510) no Hoare annotation was computed. [2020-10-19 22:23:50,025 INFO L274 CegarLoopResult]: For program point L216(lines 216 219) no Hoare annotation was computed. [2020-10-19 22:23:50,026 INFO L270 CegarLoopResult]: At program point L150(lines 146 500) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 .cse1 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse3 .cse2))) [2020-10-19 22:23:50,026 INFO L274 CegarLoopResult]: For program point L84(lines 84 90) no Hoare annotation was computed. [2020-10-19 22:23:50,026 INFO L270 CegarLoopResult]: At program point L481(lines 98 534) the Hoare annotation is: (let ((.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse11 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 .cse1) (and .cse6 .cse7 .cse8 .cse2 .cse4 .cse9) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2 .cse9) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse10 .cse1 .cse11) (and .cse1 .cse9) (and .cse1 .cse3 .cse4) (and .cse2 (= 4464 ULTIMATE.start_ssl3_connect_~s__state~0) .cse9) (and .cse5 .cse2 .cse9) (and .cse10 .cse7 .cse2 .cse4 .cse11 .cse9) (and .cse2 (= 4496 ULTIMATE.start_ssl3_connect_~s__state~0) .cse9) (and .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4480) .cse9) (and .cse0 .cse2 .cse9) (and .cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse8) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)))) [2020-10-19 22:23:50,026 INFO L274 CegarLoopResult]: For program point L316(lines 316 318) no Hoare annotation was computed. [2020-10-19 22:23:50,026 INFO L274 CegarLoopResult]: For program point L250(lines 250 252) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L250-2(lines 201 480) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L383(lines 383 387) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L383-2(lines 201 480) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L284(lines 284 286) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L284-2(lines 282 290) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L185(lines 185 487) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L152(lines 152 498) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L119(lines 119 509) no Hoare annotation was computed. [2020-10-19 22:23:50,027 INFO L274 CegarLoopResult]: For program point L516(lines 516 532) no Hoare annotation was computed. [2020-10-19 22:23:50,028 INFO L270 CegarLoopResult]: At program point L186(lines 182 488) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2020-10-19 22:23:50,028 INFO L270 CegarLoopResult]: At program point L120(lines 116 510) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1))) [2020-10-19 22:23:50,028 INFO L274 CegarLoopResult]: For program point L87(lines 87 89) no Hoare annotation was computed. [2020-10-19 22:23:50,028 INFO L274 CegarLoopResult]: For program point L87-2(lines 84 90) no Hoare annotation was computed. [2020-10-19 22:23:50,028 INFO L274 CegarLoopResult]: For program point L517(lines 517 531) no Hoare annotation was computed. [2020-10-19 22:23:50,028 INFO L274 CegarLoopResult]: For program point L352(lines 352 354) no Hoare annotation was computed. [2020-10-19 22:23:50,028 INFO L274 CegarLoopResult]: For program point L518(lines 518 523) no Hoare annotation was computed. [2020-10-19 22:23:50,028 INFO L274 CegarLoopResult]: For program point L518-2(lines 517 531) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L188(lines 188 486) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L155(lines 155 497) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L122(lines 122 508) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L222(lines 222 233) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L222-2(lines 201 480) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L520(lines 520 522) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L356(lines 356 361) no Hoare annotation was computed. [2020-10-19 22:23:50,029 INFO L274 CegarLoopResult]: For program point L356-2(lines 356 361) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L224(lines 224 227) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L191(lines 191 485) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L158(lines 158 496) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L125(lines 125 507) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L92(lines 92 96) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L456-1(lines 456 458) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L274 CegarLoopResult]: For program point L258(lines 258 260) no Hoare annotation was computed. [2020-10-19 22:23:50,030 INFO L270 CegarLoopResult]: At program point L192(lines 188 486) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse2 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse4) (and .cse1 .cse2 .cse4) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse3 .cse2 .cse4))) [2020-10-19 22:23:50,031 INFO L270 CegarLoopResult]: At program point L126(lines 122 508) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L93(lines 93 95) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L277 CegarLoopResult]: At program point L556(lines 548 558) the Hoare annotation is: true [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L325-2(lines 201 480) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L392(lines 392 395) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L194(lines 194 484) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L161(lines 161 495) no Hoare annotation was computed. [2020-10-19 22:23:50,031 INFO L274 CegarLoopResult]: For program point L128(lines 128 506) no Hoare annotation was computed. [2020-10-19 22:23:50,032 INFO L274 CegarLoopResult]: For program point L525(lines 525 529) no Hoare annotation was computed. [2020-10-19 22:23:50,032 INFO L274 CegarLoopResult]: For program point L228(lines 228 231) no Hoare annotation was computed. [2020-10-19 22:23:50,032 INFO L270 CegarLoopResult]: At program point L195(lines 194 484) the Hoare annotation is: (let ((.cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse3) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse4 .cse1))) [2020-10-19 22:23:50,032 INFO L270 CegarLoopResult]: At program point L162(lines 152 498) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-10-19 22:23:50,032 INFO L274 CegarLoopResult]: For program point L427(lines 427 429) no Hoare annotation was computed. [2020-10-19 22:23:50,032 INFO L274 CegarLoopResult]: For program point L197(lines 197 483) no Hoare annotation was computed. [2020-10-19 22:23:50,032 INFO L274 CegarLoopResult]: For program point L164(lines 164 494) no Hoare annotation was computed. [2020-10-19 22:23:50,032 INFO L274 CegarLoopResult]: For program point L131(lines 131 505) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point L98-1(lines 76 546) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point L462(lines 462 464) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point L462-2(lines 462 464) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point L297(lines 297 299) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L274 CegarLoopResult]: For program point L297-2(lines 201 480) no Hoare annotation was computed. [2020-10-19 22:23:50,033 INFO L277 CegarLoopResult]: At program point L198(lines 197 483) the Hoare annotation is: true [2020-10-19 22:23:50,034 INFO L270 CegarLoopResult]: At program point L132(lines 128 506) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L430(lines 430 434) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L430-2(lines 430 434) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L331(lines 331 335) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L265(lines 265 267) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L331-2(lines 331 335) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L274 CegarLoopResult]: For program point L265-2(lines 201 480) no Hoare annotation was computed. [2020-10-19 22:23:50,034 INFO L277 CegarLoopResult]: At program point L200(lines 199 483) the Hoare annotation is: true [2020-10-19 22:23:50,035 INFO L274 CegarLoopResult]: For program point L167(lines 167 493) no Hoare annotation was computed. [2020-10-19 22:23:50,035 INFO L274 CegarLoopResult]: For program point L134(lines 134 504) no Hoare annotation was computed. [2020-10-19 22:23:50,035 INFO L274 CegarLoopResult]: For program point L101(lines 101 515) no Hoare annotation was computed. [2020-10-19 22:23:50,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:23:50 BoogieIcfgContainer [2020-10-19 22:23:50,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:23:50,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:23:50,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:23:50,064 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:23:50,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:33" (3/4) ... [2020-10-19 22:23:50,068 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:23:50,088 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:23:50,089 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:23:50,090 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:23:50,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:23:50,200 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:23:50,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:23:50,202 INFO L168 Benchmark]: Toolchain (without parser) took 18033.40 ms. Allocated memory was 36.2 MB in the beginning and 350.7 MB in the end (delta: 314.6 MB). Free memory was 9.4 MB in the beginning and 170.5 MB in the end (delta: -161.0 MB). Peak memory consumption was 153.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,202 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 14.5 MB in the beginning and 14.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.40 ms. Allocated memory was 36.2 MB in the beginning and 45.1 MB in the end (delta: 8.9 MB). Free memory was 8.6 MB in the beginning and 23.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.67 ms. Allocated memory is still 45.1 MB. Free memory was 22.9 MB in the beginning and 20.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,204 INFO L168 Benchmark]: Boogie Preprocessor took 46.21 ms. Allocated memory is still 45.1 MB. Free memory was 20.0 MB in the beginning and 17.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,204 INFO L168 Benchmark]: RCFGBuilder took 877.06 ms. Allocated memory was 45.1 MB in the beginning and 49.3 MB in the end (delta: 4.2 MB). Free memory was 17.7 MB in the beginning and 19.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,204 INFO L168 Benchmark]: TraceAbstraction took 16386.15 ms. Allocated memory was 49.3 MB in the beginning and 350.7 MB in the end (delta: 301.5 MB). Free memory was 18.8 MB in the beginning and 180.2 MB in the end (delta: -161.4 MB). Peak memory consumption was 269.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,205 INFO L168 Benchmark]: Witness Printer took 137.12 ms. Allocated memory is still 350.7 MB. Free memory was 180.2 MB in the beginning and 170.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:23:50,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 14.5 MB in the beginning and 14.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 512.40 ms. Allocated memory was 36.2 MB in the beginning and 45.1 MB in the end (delta: 8.9 MB). Free memory was 8.6 MB in the beginning and 23.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 63.67 ms. Allocated memory is still 45.1 MB. Free memory was 22.9 MB in the beginning and 20.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 46.21 ms. Allocated memory is still 45.1 MB. Free memory was 20.0 MB in the beginning and 17.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 877.06 ms. Allocated memory was 45.1 MB in the beginning and 49.3 MB in the end (delta: 4.2 MB). Free memory was 17.7 MB in the beginning and 19.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 16386.15 ms. Allocated memory was 49.3 MB in the beginning and 350.7 MB in the end (delta: 301.5 MB). Free memory was 18.8 MB in the beginning and 180.2 MB in the end (delta: -161.4 MB). Peak memory consumption was 269.5 MB. Max. memory is 14.3 GB. * Witness Printer took 137.12 ms. Allocated memory is still 350.7 MB. Free memory was 180.2 MB in the beginning and 170.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((blastFlag == 0 && 12292 == s__state) || ((blastFlag == 2 && 12292 == s__state) && s__hit == 0)) || (((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && 12292 == s__state) && s__hit == 0) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((4512 == s__state && blastFlag == 2) || ((256 == s__s3__tmp__new_cipher__algorithms && s__state <= 3) && s__s3__tmp__next_state___0 <= 4560)) || (s__state == 4528 && blastFlag == 2)) || (((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state)) || (blastFlag == 2 && s__hit == 0)) || ((blastFlag == 2 && s__state <= 3) && s__s3__tmp__next_state___0 <= 4560)) || ((256 == s__s3__tmp__new_cipher__algorithms && 4464 == s__state) && s__hit == 0)) || ((s__state == 4528 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || ((256 == s__s3__tmp__new_cipher__algorithms && 4496 == s__state) && s__hit == 0)) || ((256 == s__s3__tmp__new_cipher__algorithms && s__state == 4480) && s__hit == 0)) || ((4512 == s__state && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((s__state <= 4560 && blastFlag == 1) && 4352 <= s__state)) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((((s__state <= 4560 && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || ((blastFlag == 2 && 4560 <= s__state) && s__hit == 0)) || (((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && 4560 <= s__state) && s__hit == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || ((s__state <= 4560 && blastFlag == 0) && 4352 <= s__state) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((s__state <= 4352 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__hit == 0) || ((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (s__state <= 4352 && blastFlag == 0) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.5s, OverallIterations: 26, TraceHistogramMax: 18, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5036 SDtfs, 1502 SDslu, 2889 SDs, 0 SdLazy, 2415 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1564 GetRequests, 1530 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9228occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 3643 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 269 NumberOfFragments, 696 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9570 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 22 FomulaSimplificationsInter, 1190 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 6634 NumberOfCodeBlocks, 6634 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6604 ConstructedInterpolants, 0 QuantifiedInterpolants, 2667422 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2703 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 22225/22304 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 proved your program to be correct! Received shutdown request...