./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.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_3.cil-3.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 6fb7e842c9cc7c34f1770862f1d9d5e094000777 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:23:51,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:23:51,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:23:51,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:23:51,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:23:51,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:23:51,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:23:51,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:23:51,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:23:51,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:23:51,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:23:51,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:23:51,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:23:51,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:23:51,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:23:52,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:23:52,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:23:52,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:23:52,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:23:52,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:23:52,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:23:52,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:23:52,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:23:52,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:23:52,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:23:52,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:23:52,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:23:52,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:23:52,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:23:52,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:23:52,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:23:52,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:23:52,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:23:52,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:23:52,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:23:52,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:23:52,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:23:52,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:23:52,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:23:52,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:23:52,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:23:52,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:23:52,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:23:52,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:23:52,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:23:52,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:23:52,098 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:23:52,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:23:52,098 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:23:52,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:23:52,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:23:52,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:23:52,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:23:52,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:23:52,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:23:52,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:23:52,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:23:52,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:23:52,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:23:52,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:23:52,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:23:52,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:23:52,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:23:52,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:23:52,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:23:52,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:23:52,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:23:52,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:23:52,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:23:52,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:23:52,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:23:52,105 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 -> 6fb7e842c9cc7c34f1770862f1d9d5e094000777 [2020-10-19 22:23:52,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:23:52,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:23:52,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:23:52,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:23:52,322 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:23:52,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-10-19 22:23:52,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1feb63386/98eda9eb8ecb49cebc10f228a58fc73e/FLAG57f7e9dfa [2020-10-19 22:23:52,840 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:23:52,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-10-19 22:23:52,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1feb63386/98eda9eb8ecb49cebc10f228a58fc73e/FLAG57f7e9dfa [2020-10-19 22:23:53,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1feb63386/98eda9eb8ecb49cebc10f228a58fc73e [2020-10-19 22:23:53,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:23:53,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:23:53,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:23:53,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:23:53,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:23:53,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de48ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53, skipping insertion in model container [2020-10-19 22:23:53,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:23:53,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:23:53,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:23:53,707 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:23:53,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:23:53,824 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:23:53,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53 WrapperNode [2020-10-19 22:23:53,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:23:53,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:23:53,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:23:53,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:23:53,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:23:53,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:23:53,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:23:53,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:23:53,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (1/1) ... [2020-10-19 22:23:53,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:23:53,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:23:53,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:23:53,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:23:53,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (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 22:23:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:23:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:23:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:23:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:23:54,159 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:23:54,707 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-19 22:23:54,707 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-19 22:23:54,720 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:23:54,721 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:23:54,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:54 BoogieIcfgContainer [2020-10-19 22:23:54,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:23:54,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:23:54,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:23:54,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:23:54,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:23:53" (1/3) ... [2020-10-19 22:23:54,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70feb439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:23:54, skipping insertion in model container [2020-10-19 22:23:54,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:53" (2/3) ... [2020-10-19 22:23:54,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70feb439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:23:54, skipping insertion in model container [2020-10-19 22:23:54,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:54" (3/3) ... [2020-10-19 22:23:54,735 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2020-10-19 22:23:54,757 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:23:54,771 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:23:54,790 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:23:54,816 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:23:54,816 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:23:54,817 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:23:54,817 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:23:54,817 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:23:54,818 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:23:54,818 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:23:54,818 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:23:54,839 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-10-19 22:23:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 22:23:54,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:54,849 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 22:23:54,849 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:54,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:54,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-10-19 22:23:54,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:54,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008321243] [2020-10-19 22:23:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:55,087 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 22:23:55,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008321243] [2020-10-19 22:23:55,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:55,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:55,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309514385] [2020-10-19 22:23:55,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:55,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:55,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:55,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:55,113 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-10-19 22:23:55,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:55,333 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-10-19 22:23:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:55,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-19 22:23:55,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:55,348 INFO L225 Difference]: With dead ends: 253 [2020-10-19 22:23:55,349 INFO L226 Difference]: Without dead ends: 115 [2020-10-19 22:23:55,352 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 22:23:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-19 22:23:55,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-19 22:23:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-19 22:23:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-10-19 22:23:55,393 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-10-19 22:23:55,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:55,394 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-10-19 22:23:55,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:55,394 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-10-19 22:23:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-19 22:23:55,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:55,396 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 22:23:55,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:23:55,397 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-10-19 22:23:55,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:55,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838233253] [2020-10-19 22:23:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:55,482 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 22:23:55,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838233253] [2020-10-19 22:23:55,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:55,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:55,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372595483] [2020-10-19 22:23:55,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:55,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:55,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:55,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:55,485 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-10-19 22:23:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:55,630 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2020-10-19 22:23:55,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:55,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-19 22:23:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:55,633 INFO L225 Difference]: With dead ends: 238 [2020-10-19 22:23:55,633 INFO L226 Difference]: Without dead ends: 133 [2020-10-19 22:23:55,635 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 22:23:55,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-19 22:23:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-10-19 22:23:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-19 22:23:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-10-19 22:23:55,647 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-10-19 22:23:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:55,648 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-10-19 22:23:55,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-10-19 22:23:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-19 22:23:55,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:55,651 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 22:23:55,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:23:55,651 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:55,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:55,652 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2020-10-19 22:23:55,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:55,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428909114] [2020-10-19 22:23:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:55,758 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 22:23:55,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428909114] [2020-10-19 22:23:55,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:55,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:55,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958888018] [2020-10-19 22:23:55,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:55,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:55,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:55,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:55,764 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-10-19 22:23:55,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:55,929 INFO L93 Difference]: Finished difference Result 272 states and 408 transitions. [2020-10-19 22:23:55,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:55,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-19 22:23:55,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:55,932 INFO L225 Difference]: With dead ends: 272 [2020-10-19 22:23:55,932 INFO L226 Difference]: Without dead ends: 152 [2020-10-19 22:23:55,933 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 22:23:55,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-19 22:23:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-10-19 22:23:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-19 22:23:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-10-19 22:23:55,945 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-10-19 22:23:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:55,945 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-10-19 22:23:55,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:55,946 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-10-19 22:23:55,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:23:55,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:55,948 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 22:23:55,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:23:55,949 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:55,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:55,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1238030766, now seen corresponding path program 1 times [2020-10-19 22:23:55,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:55,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51597872] [2020-10-19 22:23:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:56,033 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 22:23:56,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51597872] [2020-10-19 22:23:56,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:56,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:56,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471222180] [2020-10-19 22:23:56,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:56,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:56,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:56,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:56,036 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-10-19 22:23:56,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:56,242 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-10-19 22:23:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:56,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:23:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:56,245 INFO L225 Difference]: With dead ends: 335 [2020-10-19 22:23:56,245 INFO L226 Difference]: Without dead ends: 197 [2020-10-19 22:23:56,246 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 22:23:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-19 22:23:56,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-10-19 22:23:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-19 22:23:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-10-19 22:23:56,258 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-10-19 22:23:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:56,258 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-10-19 22:23:56,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-10-19 22:23:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:23:56,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:56,261 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 22:23:56,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:23:56,262 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:56,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1251498196, now seen corresponding path program 1 times [2020-10-19 22:23:56,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:56,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647642477] [2020-10-19 22:23:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:56,345 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 22:23:56,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647642477] [2020-10-19 22:23:56,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:56,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:56,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141429306] [2020-10-19 22:23:56,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:56,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:56,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:56,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:56,348 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-10-19 22:23:56,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:56,478 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-10-19 22:23:56,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:56,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:23:56,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:56,481 INFO L225 Difference]: With dead ends: 390 [2020-10-19 22:23:56,481 INFO L226 Difference]: Without dead ends: 212 [2020-10-19 22:23:56,482 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 22:23:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-19 22:23:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-10-19 22:23:56,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-19 22:23:56,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-10-19 22:23:56,503 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-10-19 22:23:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:56,506 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-10-19 22:23:56,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-10-19 22:23:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 22:23:56,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:56,512 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, 1] [2020-10-19 22:23:56,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:23:56,512 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1821092144, now seen corresponding path program 1 times [2020-10-19 22:23:56,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:56,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905428128] [2020-10-19 22:23:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:56,595 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 22:23:56,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905428128] [2020-10-19 22:23:56,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:56,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:56,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592614546] [2020-10-19 22:23:56,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:56,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:56,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:56,601 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-10-19 22:23:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:56,745 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-10-19 22:23:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:56,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-10-19 22:23:56,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:56,748 INFO L225 Difference]: With dead ends: 428 [2020-10-19 22:23:56,748 INFO L226 Difference]: Without dead ends: 231 [2020-10-19 22:23:56,748 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 22:23:56,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-19 22:23:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-10-19 22:23:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-19 22:23:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-10-19 22:23:56,756 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-10-19 22:23:56,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:56,757 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-10-19 22:23:56,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:56,757 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-10-19 22:23:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 22:23:56,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:56,759 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] [2020-10-19 22:23:56,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:23:56,760 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:56,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:56,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1901861672, now seen corresponding path program 1 times [2020-10-19 22:23:56,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:56,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848557942] [2020-10-19 22:23:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:56,831 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 22:23:56,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848557942] [2020-10-19 22:23:56,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:56,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:56,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540435058] [2020-10-19 22:23:56,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:56,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:56,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:56,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:56,833 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-10-19 22:23:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:56,888 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-10-19 22:23:56,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:56,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-19 22:23:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:56,892 INFO L225 Difference]: With dead ends: 661 [2020-10-19 22:23:56,892 INFO L226 Difference]: Without dead ends: 443 [2020-10-19 22:23:56,893 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 22:23:56,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-19 22:23:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-10-19 22:23:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-10-19 22:23:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-10-19 22:23:56,907 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-10-19 22:23:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:56,907 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-10-19 22:23:56,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-10-19 22:23:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:23:56,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:56,909 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 22:23:56,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:23:56,910 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:56,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:56,910 INFO L82 PathProgramCache]: Analyzing trace with hash 837467901, now seen corresponding path program 1 times [2020-10-19 22:23:56,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:56,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759968517] [2020-10-19 22:23:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:56,959 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 22:23:56,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759968517] [2020-10-19 22:23:56,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:56,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:56,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202435902] [2020-10-19 22:23:56,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:56,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:56,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:56,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:56,961 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-10-19 22:23:56,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:56,986 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-10-19 22:23:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:56,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:23:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:56,989 INFO L225 Difference]: With dead ends: 897 [2020-10-19 22:23:56,989 INFO L226 Difference]: Without dead ends: 464 [2020-10-19 22:23:56,990 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 22:23:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-19 22:23:57,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-19 22:23:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-19 22:23:57,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-10-19 22:23:57,014 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 106 [2020-10-19 22:23:57,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:57,014 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-10-19 22:23:57,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-10-19 22:23:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:23:57,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:57,016 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 22:23:57,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:23:57,017 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:57,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1077707647, now seen corresponding path program 1 times [2020-10-19 22:23:57,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:57,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014738931] [2020-10-19 22:23:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:57,063 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 22:23:57,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014738931] [2020-10-19 22:23:57,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:57,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:57,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880065058] [2020-10-19 22:23:57,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:57,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:57,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:57,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:57,070 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-10-19 22:23:57,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:57,100 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-10-19 22:23:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:57,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:23:57,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:57,104 INFO L225 Difference]: With dead ends: 945 [2020-10-19 22:23:57,105 INFO L226 Difference]: Without dead ends: 491 [2020-10-19 22:23:57,106 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 22:23:57,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-19 22:23:57,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-10-19 22:23:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-10-19 22:23:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-10-19 22:23:57,117 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-10-19 22:23:57,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:57,118 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-10-19 22:23:57,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:57,118 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-10-19 22:23:57,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-19 22:23:57,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:57,121 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, 1] [2020-10-19 22:23:57,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:23:57,122 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:57,122 INFO L82 PathProgramCache]: Analyzing trace with hash -2015927886, now seen corresponding path program 1 times [2020-10-19 22:23:57,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:57,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035054649] [2020-10-19 22:23:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:57,225 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 22:23:57,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035054649] [2020-10-19 22:23:57,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:57,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:57,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454298453] [2020-10-19 22:23:57,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:57,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:57,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:57,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:57,233 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-10-19 22:23:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:57,270 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-10-19 22:23:57,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:57,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-19 22:23:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:57,275 INFO L225 Difference]: With dead ends: 709 [2020-10-19 22:23:57,275 INFO L226 Difference]: Without dead ends: 707 [2020-10-19 22:23:57,275 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 22:23:57,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-10-19 22:23:57,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-10-19 22:23:57,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-10-19 22:23:57,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-10-19 22:23:57,295 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-10-19 22:23:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:57,295 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-10-19 22:23:57,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-10-19 22:23:57,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-19 22:23:57,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:57,298 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:57,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:23:57,298 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:57,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:57,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1870688019, now seen corresponding path program 1 times [2020-10-19 22:23:57,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:57,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043920225] [2020-10-19 22:23:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:57,397 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-19 22:23:57,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043920225] [2020-10-19 22:23:57,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:57,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:57,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750214393] [2020-10-19 22:23:57,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:57,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:57,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:57,400 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-10-19 22:23:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:57,649 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-10-19 22:23:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:57,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-10-19 22:23:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:57,657 INFO L225 Difference]: With dead ends: 1530 [2020-10-19 22:23:57,657 INFO L226 Difference]: Without dead ends: 857 [2020-10-19 22:23:57,659 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 22:23:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-19 22:23:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-10-19 22:23:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-19 22:23:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-10-19 22:23:57,684 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 162 [2020-10-19 22:23:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:57,684 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-10-19 22:23:57,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:57,685 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-10-19 22:23:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-19 22:23:57,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:57,690 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 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, 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] [2020-10-19 22:23:57,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:23:57,691 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:57,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:57,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1491644371, now seen corresponding path program 1 times [2020-10-19 22:23:57,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:57,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682408554] [2020-10-19 22:23:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-10-19 22:23:57,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682408554] [2020-10-19 22:23:57,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:57,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:57,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327483310] [2020-10-19 22:23:57,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:57,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:57,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:57,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:57,841 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-10-19 22:23:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:58,119 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-10-19 22:23:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:58,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-10-19 22:23:58,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:58,126 INFO L225 Difference]: With dead ends: 1892 [2020-10-19 22:23:58,126 INFO L226 Difference]: Without dead ends: 1054 [2020-10-19 22:23:58,128 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 22:23:58,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-10-19 22:23:58,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-10-19 22:23:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-19 22:23:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-10-19 22:23:58,162 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-10-19 22:23:58,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:58,163 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-10-19 22:23:58,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-10-19 22:23:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-19 22:23:58,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:58,170 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-10-19 22:23:58,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:23:58,171 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:58,172 INFO L82 PathProgramCache]: Analyzing trace with hash -637948485, now seen corresponding path program 1 times [2020-10-19 22:23:58,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:58,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314616293] [2020-10-19 22:23:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 22:23:58,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314616293] [2020-10-19 22:23:58,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:58,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:58,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296023908] [2020-10-19 22:23:58,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:58,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:58,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:58,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:58,312 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-10-19 22:23:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:58,580 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-10-19 22:23:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:58,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-10-19 22:23:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:58,589 INFO L225 Difference]: With dead ends: 2148 [2020-10-19 22:23:58,590 INFO L226 Difference]: Without dead ends: 1127 [2020-10-19 22:23:58,591 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 22:23:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-19 22:23:58,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-10-19 22:23:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-19 22:23:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-10-19 22:23:58,643 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-10-19 22:23:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:58,643 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-10-19 22:23:58,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-10-19 22:23:58,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 22:23:58,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:58,652 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 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, 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] [2020-10-19 22:23:58,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:23:58,653 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:58,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:58,654 INFO L82 PathProgramCache]: Analyzing trace with hash 668090344, now seen corresponding path program 1 times [2020-10-19 22:23:58,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:58,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487319671] [2020-10-19 22:23:58,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-19 22:23:58,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487319671] [2020-10-19 22:23:58,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:58,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:58,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942551936] [2020-10-19 22:23:58,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:58,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:58,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:58,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:58,814 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-10-19 22:23:59,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:59,073 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-10-19 22:23:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:59,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 22:23:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:59,083 INFO L225 Difference]: With dead ends: 2298 [2020-10-19 22:23:59,083 INFO L226 Difference]: Without dead ends: 1208 [2020-10-19 22:23:59,086 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 22:23:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-19 22:23:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-10-19 22:23:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-10-19 22:23:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-10-19 22:23:59,144 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-10-19 22:23:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:59,145 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-10-19 22:23:59,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:59,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-10-19 22:23:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 22:23:59,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:59,154 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 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, 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] [2020-10-19 22:23:59,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:23:59,155 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:59,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:59,156 INFO L82 PathProgramCache]: Analyzing trace with hash 786531818, now seen corresponding path program 1 times [2020-10-19 22:23:59,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:59,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394450813] [2020-10-19 22:23:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-19 22:23:59,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394450813] [2020-10-19 22:23:59,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:59,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:59,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709749521] [2020-10-19 22:23:59,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:59,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:59,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:59,298 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-10-19 22:23:59,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:59,495 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-10-19 22:23:59,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:59,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 22:23:59,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:59,503 INFO L225 Difference]: With dead ends: 2466 [2020-10-19 22:23:59,503 INFO L226 Difference]: Without dead ends: 1304 [2020-10-19 22:23:59,507 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 22:23:59,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-10-19 22:23:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-10-19 22:23:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-10-19 22:23:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-10-19 22:23:59,543 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-10-19 22:23:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:59,544 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-10-19 22:23:59,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-10-19 22:23:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-19 22:23:59,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:59,550 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-10-19 22:23:59,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:23:59,550 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:59,551 INFO L82 PathProgramCache]: Analyzing trace with hash 12496008, now seen corresponding path program 1 times [2020-10-19 22:23:59,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:59,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501050535] [2020-10-19 22:23:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-10-19 22:23:59,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501050535] [2020-10-19 22:23:59,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:59,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:59,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51707045] [2020-10-19 22:23:59,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:59,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:59,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:59,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:59,669 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-10-19 22:23:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:59,727 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-10-19 22:23:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:59,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-10-19 22:23:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:59,743 INFO L225 Difference]: With dead ends: 3718 [2020-10-19 22:23:59,743 INFO L226 Difference]: Without dead ends: 2490 [2020-10-19 22:23:59,746 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 22:23:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-10-19 22:23:59,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-10-19 22:23:59,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-10-19 22:23:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-10-19 22:23:59,830 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-10-19 22:23:59,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:59,830 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-10-19 22:23:59,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:59,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-10-19 22:23:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-19 22:23:59,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:59,841 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-10-19 22:23:59,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 22:23:59,842 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:59,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:59,843 INFO L82 PathProgramCache]: Analyzing trace with hash 130937482, now seen corresponding path program 1 times [2020-10-19 22:23:59,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:59,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554181627] [2020-10-19 22:23:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-10-19 22:23:59,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554181627] [2020-10-19 22:23:59,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:59,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:59,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141410493] [2020-10-19 22:23:59,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:59,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:59,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:59,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:59,989 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-10-19 22:24:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:00,231 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-10-19 22:24:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:00,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-10-19 22:24:00,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:00,245 INFO L225 Difference]: With dead ends: 5251 [2020-10-19 22:24:00,245 INFO L226 Difference]: Without dead ends: 2770 [2020-10-19 22:24:00,249 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 22:24:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-10-19 22:24:00,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-10-19 22:24:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-10-19 22:24:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-10-19 22:24:00,352 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-10-19 22:24:00,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:00,352 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-10-19 22:24:00,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-10-19 22:24:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-19 22:24:00,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:00,361 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 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, 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] [2020-10-19 22:24:00,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 22:24:00,361 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:00,362 INFO L82 PathProgramCache]: Analyzing trace with hash -142796669, now seen corresponding path program 1 times [2020-10-19 22:24:00,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:00,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566309170] [2020-10-19 22:24:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-10-19 22:24:00,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566309170] [2020-10-19 22:24:00,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:00,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:00,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694059726] [2020-10-19 22:24:00,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:00,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:00,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:00,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:00,478 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-10-19 22:24:00,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:00,696 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-10-19 22:24:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:00,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-10-19 22:24:00,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:00,710 INFO L225 Difference]: With dead ends: 5443 [2020-10-19 22:24:00,710 INFO L226 Difference]: Without dead ends: 2764 [2020-10-19 22:24:00,714 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 22:24:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-10-19 22:24:00,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-10-19 22:24:00,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-10-19 22:24:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-10-19 22:24:00,805 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-10-19 22:24:00,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:00,805 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-10-19 22:24:00,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:00,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-10-19 22:24:00,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-19 22:24:00,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:00,817 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:00,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 22:24:00,818 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:00,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1408099866, now seen corresponding path program 1 times [2020-10-19 22:24:00,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:00,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057057738] [2020-10-19 22:24:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-19 22:24:00,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057057738] [2020-10-19 22:24:00,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:00,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:00,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499623773] [2020-10-19 22:24:00,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:00,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:00,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:00,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:00,964 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-10-19 22:24:01,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:01,151 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-10-19 22:24:01,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:01,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-10-19 22:24:01,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:01,166 INFO L225 Difference]: With dead ends: 5407 [2020-10-19 22:24:01,167 INFO L226 Difference]: Without dead ends: 2752 [2020-10-19 22:24:01,171 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 22:24:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-10-19 22:24:01,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-10-19 22:24:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-10-19 22:24:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-10-19 22:24:01,245 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 308 [2020-10-19 22:24:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:01,246 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-10-19 22:24:01,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:01,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-10-19 22:24:01,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-19 22:24:01,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:01,271 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, 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 22:24:01,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 22:24:01,271 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:01,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1960500931, now seen corresponding path program 1 times [2020-10-19 22:24:01,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:01,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925883785] [2020-10-19 22:24:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:01,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:24:01,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925883785] [2020-10-19 22:24:01,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:01,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:01,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827647807] [2020-10-19 22:24:01,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:01,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:01,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:01,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:01,403 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-10-19 22:24:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:01,632 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-10-19 22:24:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:01,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-10-19 22:24:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:01,652 INFO L225 Difference]: With dead ends: 5653 [2020-10-19 22:24:01,652 INFO L226 Difference]: Without dead ends: 2998 [2020-10-19 22:24:01,656 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 22:24:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-10-19 22:24:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-10-19 22:24:01,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-10-19 22:24:01,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-10-19 22:24:01,756 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-10-19 22:24:01,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:01,757 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-10-19 22:24:01,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:01,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-10-19 22:24:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-19 22:24:01,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:01,772 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, 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 22:24:01,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 22:24:01,773 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:01,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:01,773 INFO L82 PathProgramCache]: Analyzing trace with hash 806996379, now seen corresponding path program 1 times [2020-10-19 22:24:01,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:01,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123754670] [2020-10-19 22:24:01,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-10-19 22:24:02,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123754670] [2020-10-19 22:24:02,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:02,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:02,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147078235] [2020-10-19 22:24:02,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:02,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:02,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:02,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:02,388 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-10-19 22:24:02,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:02,469 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-10-19 22:24:02,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:02,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-10-19 22:24:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:02,513 INFO L225 Difference]: With dead ends: 7882 [2020-10-19 22:24:02,513 INFO L226 Difference]: Without dead ends: 5137 [2020-10-19 22:24:02,518 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 22:24:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-10-19 22:24:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-10-19 22:24:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-10-19 22:24:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-10-19 22:24:02,663 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-10-19 22:24:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:02,663 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-10-19 22:24:02,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-10-19 22:24:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-19 22:24:02,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:02,674 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:02,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 22:24:02,675 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:02,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:02,675 INFO L82 PathProgramCache]: Analyzing trace with hash 722980357, now seen corresponding path program 1 times [2020-10-19 22:24:02,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:02,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59291993] [2020-10-19 22:24:02,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-19 22:24:02,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59291993] [2020-10-19 22:24:02,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947023862] [2020-10-19 22:24:02,826 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 22:24:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:03,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:24:03,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:24:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-19 22:24:03,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:24:03,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:24:03,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140371477] [2020-10-19 22:24:03,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:24:03,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:03,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:24:03,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:24:03,247 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-10-19 22:24:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:03,705 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-10-19 22:24:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 22:24:03,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2020-10-19 22:24:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:03,728 INFO L225 Difference]: With dead ends: 10175 [2020-10-19 22:24:03,729 INFO L226 Difference]: Without dead ends: 7688 [2020-10-19 22:24:03,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 349 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 22:24:03,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-10-19 22:24:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-10-19 22:24:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-10-19 22:24:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-10-19 22:24:04,007 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 347 [2020-10-19 22:24:04,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:04,008 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-10-19 22:24:04,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:24:04,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-10-19 22:24:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-19 22:24:04,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:04,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:04,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-19 22:24:04,241 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:04,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1881562091, now seen corresponding path program 1 times [2020-10-19 22:24:04,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:04,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507349499] [2020-10-19 22:24:04,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:24:04,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507349499] [2020-10-19 22:24:04,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671410415] [2020-10-19 22:24:04,662 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 22:24:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:04,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:24:04,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:24:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:24:04,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:24:04,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:24:04,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970695929] [2020-10-19 22:24:04,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:24:04,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:04,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:24:04,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:24:04,989 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-10-19 22:24:05,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:05,446 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-10-19 22:24:05,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:24:05,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-10-19 22:24:05,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:05,466 INFO L225 Difference]: With dead ends: 12703 [2020-10-19 22:24:05,467 INFO L226 Difference]: Without dead ends: 7058 [2020-10-19 22:24:05,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 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 22:24:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-10-19 22:24:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-10-19 22:24:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-10-19 22:24:05,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-10-19 22:24:05,707 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-10-19 22:24:05,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:05,708 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-10-19 22:24:05,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:24:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-10-19 22:24:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-19 22:24:05,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:05,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:05,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-19 22:24:05,949 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:05,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:05,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1433443056, now seen corresponding path program 1 times [2020-10-19 22:24:05,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:05,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715641037] [2020-10-19 22:24:05,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-10-19 22:24:06,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715641037] [2020-10-19 22:24:06,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:06,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:06,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55642056] [2020-10-19 22:24:06,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:06,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:06,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:06,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:06,360 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-10-19 22:24:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:06,687 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-10-19 22:24:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:06,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-10-19 22:24:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:06,698 INFO L225 Difference]: With dead ends: 11133 [2020-10-19 22:24:06,699 INFO L226 Difference]: Without dead ends: 3109 [2020-10-19 22:24:06,710 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 22:24:06,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-10-19 22:24:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-10-19 22:24:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-10-19 22:24:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-10-19 22:24:06,814 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-10-19 22:24:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:06,815 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-10-19 22:24:06,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-10-19 22:24:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-10-19 22:24:06,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:06,842 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 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, 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 22:24:06,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-19 22:24:06,842 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:06,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:06,843 INFO L82 PathProgramCache]: Analyzing trace with hash -517038626, now seen corresponding path program 1 times [2020-10-19 22:24:06,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:06,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92610419] [2020-10-19 22:24:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2020-10-19 22:24:07,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92610419] [2020-10-19 22:24:07,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41087423] [2020-10-19 22:24:07,214 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 22:24:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:07,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:24:07,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:24:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2020-10-19 22:24:07,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:24:07,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 22:24:07,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366719199] [2020-10-19 22:24:07,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:07,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:07,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:07,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:24:07,732 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-10-19 22:24:07,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:07,768 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-10-19 22:24:07,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:07,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 497 [2020-10-19 22:24:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:07,774 INFO L225 Difference]: With dead ends: 3068 [2020-10-19 22:24:07,774 INFO L226 Difference]: Without dead ends: 2571 [2020-10-19 22:24:07,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 497 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 22:24:07,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-10-19 22:24:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-10-19 22:24:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-10-19 22:24:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-10-19 22:24:07,830 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 497 [2020-10-19 22:24:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:07,831 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-10-19 22:24:07,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-10-19 22:24:07,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-10-19 22:24:07,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:07,844 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 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 22:24:08,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-19 22:24:08,059 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:08,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:08,062 INFO L82 PathProgramCache]: Analyzing trace with hash 706380836, now seen corresponding path program 1 times [2020-10-19 22:24:08,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:08,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427596136] [2020-10-19 22:24:08,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1546 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2020-10-19 22:24:08,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427596136] [2020-10-19 22:24:08,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323766001] [2020-10-19 22:24:08,338 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 22:24:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:08,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:24:08,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:24:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2339 trivial. 0 not checked. [2020-10-19 22:24:08,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:24:08,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 22:24:08,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836131206] [2020-10-19 22:24:08,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:08,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:08,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:08,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:24:08,788 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-10-19 22:24:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:08,976 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-10-19 22:24:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:08,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2020-10-19 22:24:08,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:08,986 INFO L225 Difference]: With dead ends: 5167 [2020-10-19 22:24:08,986 INFO L226 Difference]: Without dead ends: 2656 [2020-10-19 22:24:08,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 498 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 22:24:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-10-19 22:24:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-10-19 22:24:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-10-19 22:24:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-10-19 22:24:09,050 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 498 [2020-10-19 22:24:09,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:09,051 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-10-19 22:24:09,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-10-19 22:24:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2020-10-19 22:24:09,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:09,070 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:09,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:24:09,284 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:09,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:09,286 INFO L82 PathProgramCache]: Analyzing trace with hash 180586689, now seen corresponding path program 2 times [2020-10-19 22:24:09,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:09,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432868164] [2020-10-19 22:24:09,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-10-19 22:24:09,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432868164] [2020-10-19 22:24:09,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539992953] [2020-10-19 22:24:09,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:24:09,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 22:24:09,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 22:24:09,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:24:09,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:24:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-10-19 22:24:10,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:24:10,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:24:10,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023424979] [2020-10-19 22:24:10,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:24:10,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:10,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:24:10,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:24:10,142 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-10-19 22:24:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:10,321 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-10-19 22:24:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:24:10,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 609 [2020-10-19 22:24:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:10,322 INFO L225 Difference]: With dead ends: 2888 [2020-10-19 22:24:10,322 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:24:10,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 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 22:24:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:24:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:24:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:24:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:24:10,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 609 [2020-10-19 22:24:10,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:10,326 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:24:10,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:24:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:24:10,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:24:10,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-19 22:24:10,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:24:11,023 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-10-19 22:24:11,863 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-10-19 22:24:12,196 INFO L274 CegarLoopResult]: For program point L498(lines 498 500) no Hoare annotation was computed. [2020-10-19 22:24:12,197 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 500) no Hoare annotation was computed. [2020-10-19 22:24:12,197 INFO L274 CegarLoopResult]: For program point L300(lines 300 304) no Hoare annotation was computed. [2020-10-19 22:24:12,197 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 304) no Hoare annotation was computed. [2020-10-19 22:24:12,197 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 22:24:12,197 INFO L277 CegarLoopResult]: At program point L565(lines 108 566) the Hoare annotation is: true [2020-10-19 22:24:12,197 INFO L274 CegarLoopResult]: For program point L202(lines 202 515) no Hoare annotation was computed. [2020-10-19 22:24:12,197 INFO L274 CegarLoopResult]: For program point L169(lines 169 526) no Hoare annotation was computed. [2020-10-19 22:24:12,198 INFO L274 CegarLoopResult]: For program point L136(lines 136 537) no Hoare annotation was computed. [2020-10-19 22:24:12,198 INFO L274 CegarLoopResult]: For program point L103(lines 103 107) no Hoare annotation was computed. [2020-10-19 22:24:12,198 INFO L270 CegarLoopResult]: At program point L203(lines 199 516) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (not .cse2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-10-19 22:24:12,198 INFO L270 CegarLoopResult]: At program point L137(lines 133 538) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:24:12,198 INFO L274 CegarLoopResult]: For program point L104(lines 104 106) no Hoare annotation was computed. [2020-10-19 22:24:12,198 INFO L274 CegarLoopResult]: For program point L237(lines 237 253) no Hoare annotation was computed. [2020-10-19 22:24:12,198 INFO L274 CegarLoopResult]: For program point L237-2(lines 212 510) no Hoare annotation was computed. [2020-10-19 22:24:12,198 INFO L274 CegarLoopResult]: For program point L469(lines 469 481) no Hoare annotation was computed. [2020-10-19 22:24:12,199 INFO L274 CegarLoopResult]: For program point L436(lines 436 450) no Hoare annotation was computed. [2020-10-19 22:24:12,199 INFO L274 CegarLoopResult]: For program point L436-1(lines 436 450) no Hoare annotation was computed. [2020-10-19 22:24:12,199 INFO L274 CegarLoopResult]: For program point L469-2(lines 469 481) no Hoare annotation was computed. [2020-10-19 22:24:12,200 INFO L274 CegarLoopResult]: For program point L337(lines 337 340) no Hoare annotation was computed. [2020-10-19 22:24:12,200 INFO L274 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-10-19 22:24:12,200 INFO L274 CegarLoopResult]: For program point L205(lines 205 514) no Hoare annotation was computed. [2020-10-19 22:24:12,200 INFO L274 CegarLoopResult]: For program point L271-2(lines 212 510) no Hoare annotation was computed. [2020-10-19 22:24:12,201 INFO L274 CegarLoopResult]: For program point L172(lines 172 525) no Hoare annotation was computed. [2020-10-19 22:24:12,201 INFO L274 CegarLoopResult]: For program point L139(lines 139 536) no Hoare annotation was computed. [2020-10-19 22:24:12,201 INFO L274 CegarLoopResult]: For program point L503(lines 503 505) no Hoare annotation was computed. [2020-10-19 22:24:12,202 INFO L270 CegarLoopResult]: At program point L206(lines 205 514) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (not .cse1) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1))) [2020-10-19 22:24:12,202 INFO L270 CegarLoopResult]: At program point L173(lines 163 528) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:12,202 INFO L274 CegarLoopResult]: For program point L570(lines 570 572) no Hoare annotation was computed. [2020-10-19 22:24:12,203 INFO L274 CegarLoopResult]: For program point L570-2(lines 570 572) no Hoare annotation was computed. [2020-10-19 22:24:12,203 INFO L274 CegarLoopResult]: For program point L372(lines 372 374) no Hoare annotation was computed. [2020-10-19 22:24:12,203 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-10-19 22:24:12,203 INFO L274 CegarLoopResult]: For program point L208(lines 208 513) no Hoare annotation was computed. [2020-10-19 22:24:12,203 INFO L274 CegarLoopResult]: For program point L175(lines 175 524) no Hoare annotation was computed. [2020-10-19 22:24:12,204 INFO L274 CegarLoopResult]: For program point L142(lines 142 535) no Hoare annotation was computed. [2020-10-19 22:24:12,204 INFO L274 CegarLoopResult]: For program point L109-1(lines 86 576) no Hoare annotation was computed. [2020-10-19 22:24:12,204 INFO L274 CegarLoopResult]: For program point L440(lines 440 446) no Hoare annotation was computed. [2020-10-19 22:24:12,204 INFO L277 CegarLoopResult]: At program point L209(lines 208 513) the Hoare annotation is: true [2020-10-19 22:24:12,204 INFO L270 CegarLoopResult]: At program point L143(lines 139 536) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2020-10-19 22:24:12,204 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-19 22:24:12,205 INFO L274 CegarLoopResult]: For program point L243(lines 243 246) no Hoare annotation was computed. [2020-10-19 22:24:12,205 INFO L274 CegarLoopResult]: For program point L475(lines 475 478) no Hoare annotation was computed. [2020-10-19 22:24:12,205 INFO L277 CegarLoopResult]: At program point L211(lines 210 513) the Hoare annotation is: true [2020-10-19 22:24:12,205 INFO L274 CegarLoopResult]: For program point L178(lines 178 523) no Hoare annotation was computed. [2020-10-19 22:24:12,205 INFO L274 CegarLoopResult]: For program point L145(lines 145 534) no Hoare annotation was computed. [2020-10-19 22:24:12,206 INFO L274 CegarLoopResult]: For program point L112(lines 112 545) no Hoare annotation was computed. [2020-10-19 22:24:12,206 INFO L277 CegarLoopResult]: At program point L575(lines 12 577) the Hoare annotation is: true [2020-10-19 22:24:12,206 INFO L274 CegarLoopResult]: For program point L311(lines 311 321) no Hoare annotation was computed. [2020-10-19 22:24:12,206 INFO L274 CegarLoopResult]: For program point L311-2(lines 311 321) no Hoare annotation was computed. [2020-10-19 22:24:12,206 INFO L270 CegarLoopResult]: At program point L179(lines 175 524) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:12,206 INFO L270 CegarLoopResult]: At program point L113(lines 112 545) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:24:12,206 INFO L274 CegarLoopResult]: For program point L345(lines 345 347) no Hoare annotation was computed. [2020-10-19 22:24:12,207 INFO L270 CegarLoopResult]: At program point L511(lines 109 564) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (not .cse7)) (.cse10 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse5 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse10 .cse7) (and .cse8 .cse1 .cse2 .cse10) (and .cse0 .cse9 .cse3 .cse6 .cse7) (and .cse4 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse2 .cse11 .cse7) (and .cse12 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse11 .cse6) (and .cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse2 .cse5 .cse7)))) [2020-10-19 22:24:12,207 INFO L274 CegarLoopResult]: For program point L412(lines 412 416) no Hoare annotation was computed. [2020-10-19 22:24:12,207 INFO L270 CegarLoopResult]: At program point L346(lines 86 576) the Hoare annotation is: false [2020-10-19 22:24:12,207 INFO L274 CegarLoopResult]: For program point L412-2(lines 212 510) no Hoare annotation was computed. [2020-10-19 22:24:12,207 INFO L274 CegarLoopResult]: For program point L181(lines 181 522) no Hoare annotation was computed. [2020-10-19 22:24:12,207 INFO L274 CegarLoopResult]: For program point L148(lines 148 533) no Hoare annotation was computed. [2020-10-19 22:24:12,207 INFO L274 CegarLoopResult]: For program point L115(lines 115 544) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L248(lines 248 251) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L270 CegarLoopResult]: At program point L149(lines 145 534) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L546(lines 546 562) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L381(lines 381 383) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L348(lines 348 350) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L315(lines 315 317) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L282(lines 282 284) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L315-2(lines 313 321) no Hoare annotation was computed. [2020-10-19 22:24:12,208 INFO L274 CegarLoopResult]: For program point L547(lines 547 561) no Hoare annotation was computed. [2020-10-19 22:24:12,209 INFO L270 CegarLoopResult]: At program point L217(lines 115 544) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) [2020-10-19 22:24:12,209 INFO L274 CegarLoopResult]: For program point L184(lines 184 521) no Hoare annotation was computed. [2020-10-19 22:24:12,209 INFO L274 CegarLoopResult]: For program point L151(lines 151 532) no Hoare annotation was computed. [2020-10-19 22:24:12,209 INFO L274 CegarLoopResult]: For program point L118(lines 118 543) no Hoare annotation was computed. [2020-10-19 22:24:12,209 INFO L274 CegarLoopResult]: For program point L548(lines 548 553) no Hoare annotation was computed. [2020-10-19 22:24:12,209 INFO L274 CegarLoopResult]: For program point L548-2(lines 547 561) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L270 CegarLoopResult]: At program point L185(lines 181 522) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point L550(lines 550 552) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point L385(lines 385 390) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point L385-2(lines 385 390) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point L187(lines 187 520) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point L154(lines 154 531) no Hoare annotation was computed. [2020-10-19 22:24:12,210 INFO L274 CegarLoopResult]: For program point L121(lines 121 542) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L270 CegarLoopResult]: At program point L155(lines 151 532) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point L486-1(lines 486 488) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L277 CegarLoopResult]: At program point L586(lines 578 588) the Hoare annotation is: true [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point L421(lines 421 424) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point L190(lines 190 519) no Hoare annotation was computed. [2020-10-19 22:24:12,211 INFO L274 CegarLoopResult]: For program point L157(lines 157 530) no Hoare annotation was computed. [2020-10-19 22:24:12,212 INFO L274 CegarLoopResult]: For program point L124(lines 124 541) no Hoare annotation was computed. [2020-10-19 22:24:12,212 INFO L274 CegarLoopResult]: For program point L290(lines 290 296) no Hoare annotation was computed. [2020-10-19 22:24:12,212 INFO L270 CegarLoopResult]: At program point L191(lines 187 520) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-10-19 22:24:12,212 INFO L274 CegarLoopResult]: For program point L555(lines 555 559) no Hoare annotation was computed. [2020-10-19 22:24:12,212 INFO L274 CegarLoopResult]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L357(lines 357 359) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L259(lines 259 262) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L193(lines 193 518) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L160(lines 160 529) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L127(lines 127 540) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L293(lines 293 295) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-10-19 22:24:12,213 INFO L274 CegarLoopResult]: For program point L293-2(lines 212 510) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L270 CegarLoopResult]: At program point L161(lines 157 530) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L95(lines 95 101) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L492(lines 492 494) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L492-2(lines 492 494) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L459-2(lines 459 463) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L360(lines 360 364) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2020-10-19 22:24:12,214 INFO L274 CegarLoopResult]: For program point L196(lines 196 517) no Hoare annotation was computed. [2020-10-19 22:24:12,215 INFO L274 CegarLoopResult]: For program point L163(lines 163 528) no Hoare annotation was computed. [2020-10-19 22:24:12,215 INFO L274 CegarLoopResult]: For program point L130(lines 130 539) no Hoare annotation was computed. [2020-10-19 22:24:12,215 INFO L274 CegarLoopResult]: For program point L329(lines 329 331) no Hoare annotation was computed. [2020-10-19 22:24:12,215 INFO L274 CegarLoopResult]: For program point L329-2(lines 212 510) no Hoare annotation was computed. [2020-10-19 22:24:12,215 INFO L270 CegarLoopResult]: At program point L197(lines 193 518) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-10-19 22:24:12,226 INFO L270 CegarLoopResult]: At program point L131(lines 127 540) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:24:12,227 INFO L274 CegarLoopResult]: For program point L98(lines 98 100) no Hoare annotation was computed. [2020-10-19 22:24:12,227 INFO L274 CegarLoopResult]: For program point L98-2(lines 95 101) no Hoare annotation was computed. [2020-10-19 22:24:12,227 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:24:12,227 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-19 22:24:12,227 INFO L274 CegarLoopResult]: For program point L429(lines 429 431) no Hoare annotation was computed. [2020-10-19 22:24:12,228 INFO L274 CegarLoopResult]: For program point L396(lines 396 398) no Hoare annotation was computed. [2020-10-19 22:24:12,228 INFO L274 CegarLoopResult]: For program point L199(lines 199 516) no Hoare annotation was computed. [2020-10-19 22:24:12,228 INFO L274 CegarLoopResult]: For program point L166(lines 166 527) no Hoare annotation was computed. [2020-10-19 22:24:12,228 INFO L274 CegarLoopResult]: For program point L133(lines 133 538) no Hoare annotation was computed. [2020-10-19 22:24:12,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:24:12 BoogieIcfgContainer [2020-10-19 22:24:12,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:24:12,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:24:12,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:24:12,252 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:24:12,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:54" (3/4) ... [2020-10-19 22:24:12,259 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:24:12,285 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:24:12,286 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:24:12,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:24:12,288 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:24:12,430 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:24:12,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:24:12,432 INFO L168 Benchmark]: Toolchain (without parser) took 19199.77 ms. Allocated memory was 36.2 MB in the beginning and 371.2 MB in the end (delta: 335.0 MB). Free memory was 9.4 MB in the beginning and 309.3 MB in the end (delta: -300.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,433 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 35.7 MB. Free memory was 14.9 MB in the beginning and 14.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.68 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 8.5 MB in the beginning and 21.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.75 ms. Allocated memory is still 44.0 MB. Free memory was 21.4 MB in the beginning and 18.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,434 INFO L168 Benchmark]: Boogie Preprocessor took 42.95 ms. Allocated memory is still 44.0 MB. Free memory was 18.4 MB in the beginning and 15.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,434 INFO L168 Benchmark]: RCFGBuilder took 790.39 ms. Allocated memory was 44.0 MB in the beginning and 49.3 MB in the end (delta: 5.2 MB). Free memory was 15.9 MB in the beginning and 19.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,435 INFO L168 Benchmark]: TraceAbstraction took 17526.97 ms. Allocated memory was 49.3 MB in the beginning and 371.2 MB in the end (delta: 321.9 MB). Free memory was 18.9 MB in the beginning and 321.1 MB in the end (delta: -302.2 MB). Peak memory consumption was 297.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,435 INFO L168 Benchmark]: Witness Printer took 178.77 ms. Allocated memory is still 371.2 MB. Free memory was 321.1 MB in the beginning and 309.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:12,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 35.7 MB. Free memory was 14.9 MB in the beginning and 14.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 587.68 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 8.5 MB in the beginning and 21.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 63.75 ms. Allocated memory is still 44.0 MB. Free memory was 21.4 MB in the beginning and 18.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 42.95 ms. Allocated memory is still 44.0 MB. Free memory was 18.4 MB in the beginning and 15.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 790.39 ms. Allocated memory was 44.0 MB in the beginning and 49.3 MB in the end (delta: 5.2 MB). Free memory was 15.9 MB in the beginning and 19.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 17526.97 ms. Allocated memory was 49.3 MB in the beginning and 371.2 MB in the end (delta: 321.9 MB). Free memory was 18.9 MB in the beginning and 321.1 MB in the end (delta: -302.2 MB). Peak memory consumption was 297.6 MB. Max. memory is 14.3 GB. * Witness Printer took 178.77 ms. Allocated memory is still 371.2 MB. Free memory was 321.1 MB in the beginning and 309.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 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: 139]: Loop Invariant Derived loop invariant: ((((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((s__state <= 4560 && 4512 <= s__state) && blastFlag == 2)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4448) && s__hit == 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (s__state <= 4432 && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((((((((((((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || (((blastFlag <= 4 && 4400 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state)) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && s__state == 4416) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4464) && s__hit == 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4480) && s__hit == 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (blastFlag == 0 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.7s, OverallIterations: 27, TraceHistogramMax: 21, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2134 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2412 GetRequests, 2375 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 8657 NumberOfCodeBlocks, 8657 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8625 ConstructedInterpolants, 0 QuantifiedInterpolants, 4435883 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4061 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 37541/37631 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...