./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/openssl-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 0.2.0-5485861 [2020-10-25 19:38:24,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:38:24,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:38:24,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:38:24,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:38:24,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:38:24,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:38:24,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:38:24,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:38:24,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:38:24,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:38:24,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:38:24,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:38:24,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:38:24,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:38:24,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:38:24,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:38:24,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:38:24,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:38:24,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:38:24,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:38:24,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:38:25,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:38:25,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:38:25,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:38:25,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:38:25,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:38:25,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:38:25,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:38:25,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:38:25,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:38:25,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:38:25,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:38:25,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:38:25,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:38:25,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:38:25,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:38:25,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:38:25,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:38:25,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:38:25,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:38:25,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:38:25,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:38:25,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:38:25,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:38:25,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:38:25,094 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:38:25,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:38:25,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:38:25,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:38:25,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:38:25,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:38:25,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:38:25,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:38:25,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:38:25,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:38:25,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:38:25,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:38:25,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:38:25,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:38:25,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:38:25,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:38:25,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:38:25,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:38:25,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:38:25,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:38:25,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:38:25,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:38:25,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:38:25,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:38:25,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:38:25,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fb7e842c9cc7c34f1770862f1d9d5e094000777 [2020-10-25 19:38:25,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:38:25,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:38:25,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:38:25,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:38:25,593 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:38:25,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-10-25 19:38:25,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7330419a1/014e4723fa344649b6166cbbcc04d61e/FLAG07aebbdcf [2020-10-25 19:38:26,409 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:38:26,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-10-25 19:38:26,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7330419a1/014e4723fa344649b6166cbbcc04d61e/FLAG07aebbdcf [2020-10-25 19:38:26,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7330419a1/014e4723fa344649b6166cbbcc04d61e [2020-10-25 19:38:26,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:38:26,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:38:26,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:38:26,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:38:26,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:38:26,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:38:26" (1/1) ... [2020-10-25 19:38:26,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d93d8dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:26, skipping insertion in model container [2020-10-25 19:38:26,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:38:26" (1/1) ... [2020-10-25 19:38:26,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:38:26,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:38:27,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:38:27,061 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:38:27,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:38:27,150 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:38:27,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27 WrapperNode [2020-10-25 19:38:27,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:38:27,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:38:27,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:38:27,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:38:27,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:38:27,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:38:27,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:38:27,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:38:27,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (1/1) ... [2020-10-25 19:38:27,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:38:27,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:38:27,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:38:27,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:38:27,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (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 [2020-10-25 19:38:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:38:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:38:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:38:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:38:27,555 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-25 19:38:28,282 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-25 19:38:28,283 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-25 19:38:28,292 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:38:28,293 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:38:28,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:38:28 BoogieIcfgContainer [2020-10-25 19:38:28,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:38:28,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:38:28,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:38:28,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:38:28,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:38:26" (1/3) ... [2020-10-25 19:38:28,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a9c078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:38:28, skipping insertion in model container [2020-10-25 19:38:28,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:38:27" (2/3) ... [2020-10-25 19:38:28,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a9c078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:38:28, skipping insertion in model container [2020-10-25 19:38:28,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:38:28" (3/3) ... [2020-10-25 19:38:28,303 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2020-10-25 19:38:28,314 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:38:28,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:38:28,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:38:28,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:38:28,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:38:28,365 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:38:28,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:38:28,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:38:28,367 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:38:28,367 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:38:28,367 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:38:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-10-25 19:38:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 19:38:28,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:28,393 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] [2020-10-25 19:38:28,394 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:28,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:28,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-10-25 19:38:28,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:28,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423114080] [2020-10-25 19:38:28,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:38:28,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423114080] [2020-10-25 19:38:28,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:28,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:28,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624698772] [2020-10-25 19:38:28,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:28,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:28,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:28,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:28,670 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-10-25 19:38:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:28,897 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-10-25 19:38:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:28,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 19:38:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:28,913 INFO L225 Difference]: With dead ends: 253 [2020-10-25 19:38:28,913 INFO L226 Difference]: Without dead ends: 115 [2020-10-25 19:38:28,917 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 [2020-10-25 19:38:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-25 19:38:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-25 19:38:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-25 19:38:28,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-10-25 19:38:28,988 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-10-25 19:38:28,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:28,989 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-10-25 19:38:28,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-10-25 19:38:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 19:38:28,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:28,992 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] [2020-10-25 19:38:28,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:38:28,993 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:28,995 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-10-25 19:38:28,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:28,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251313675] [2020-10-25 19:38:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:38:29,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251313675] [2020-10-25 19:38:29,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:29,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:29,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870195088] [2020-10-25 19:38:29,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:29,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:29,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:29,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:29,093 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-10-25 19:38:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:29,356 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2020-10-25 19:38:29,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:29,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-25 19:38:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:29,360 INFO L225 Difference]: With dead ends: 238 [2020-10-25 19:38:29,360 INFO L226 Difference]: Without dead ends: 133 [2020-10-25 19:38:29,362 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 [2020-10-25 19:38:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-25 19:38:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-10-25 19:38:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-25 19:38:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-10-25 19:38:29,384 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-10-25 19:38:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:29,384 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-10-25 19:38:29,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-10-25 19:38:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-25 19:38:29,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:29,387 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] [2020-10-25 19:38:29,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:38:29,387 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:29,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:29,388 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2020-10-25 19:38:29,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:29,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172461438] [2020-10-25 19:38:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 19:38:29,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172461438] [2020-10-25 19:38:29,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:29,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:29,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639838090] [2020-10-25 19:38:29,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:29,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:29,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:29,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:29,519 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-10-25 19:38:29,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:29,734 INFO L93 Difference]: Finished difference Result 272 states and 408 transitions. [2020-10-25 19:38:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:29,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-25 19:38:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:29,738 INFO L225 Difference]: With dead ends: 272 [2020-10-25 19:38:29,738 INFO L226 Difference]: Without dead ends: 152 [2020-10-25 19:38:29,739 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 [2020-10-25 19:38:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-25 19:38:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-10-25 19:38:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-25 19:38:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-10-25 19:38:29,760 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-10-25 19:38:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:29,761 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-10-25 19:38:29,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-10-25 19:38:29,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-25 19:38:29,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:29,767 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] [2020-10-25 19:38:29,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 19:38:29,768 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:29,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:29,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1238030766, now seen corresponding path program 1 times [2020-10-25 19:38:29,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:29,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178320976] [2020-10-25 19:38:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-25 19:38:29,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178320976] [2020-10-25 19:38:29,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:29,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:29,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336329995] [2020-10-25 19:38:29,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:29,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:29,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:29,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:29,949 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-10-25 19:38:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:30,199 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-10-25 19:38:30,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:30,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-25 19:38:30,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:30,202 INFO L225 Difference]: With dead ends: 335 [2020-10-25 19:38:30,202 INFO L226 Difference]: Without dead ends: 197 [2020-10-25 19:38:30,203 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 [2020-10-25 19:38:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-25 19:38:30,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-10-25 19:38:30,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-25 19:38:30,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-10-25 19:38:30,218 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-10-25 19:38:30,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:30,218 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-10-25 19:38:30,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-10-25 19:38:30,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-25 19:38:30,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:30,221 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] [2020-10-25 19:38:30,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:38:30,222 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:30,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:30,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1251498196, now seen corresponding path program 1 times [2020-10-25 19:38:30,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:30,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4856050] [2020-10-25 19:38:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-25 19:38:30,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4856050] [2020-10-25 19:38:30,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:30,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:30,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86308112] [2020-10-25 19:38:30,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:30,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:30,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:30,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:30,319 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-10-25 19:38:30,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:30,487 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-10-25 19:38:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:30,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-25 19:38:30,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:30,490 INFO L225 Difference]: With dead ends: 390 [2020-10-25 19:38:30,490 INFO L226 Difference]: Without dead ends: 212 [2020-10-25 19:38:30,491 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 [2020-10-25 19:38:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-25 19:38:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-10-25 19:38:30,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-25 19:38:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-10-25 19:38:30,518 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-10-25 19:38:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:30,520 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-10-25 19:38:30,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-10-25 19:38:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-25 19:38:30,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:30,525 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] [2020-10-25 19:38:30,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 19:38:30,526 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:30,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:30,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1821092144, now seen corresponding path program 1 times [2020-10-25 19:38:30,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:30,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957761921] [2020-10-25 19:38:30,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-25 19:38:30,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957761921] [2020-10-25 19:38:30,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:30,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:30,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281475298] [2020-10-25 19:38:30,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:30,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:30,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:30,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:30,625 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-10-25 19:38:30,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:30,795 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-10-25 19:38:30,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:30,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-10-25 19:38:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:30,798 INFO L225 Difference]: With dead ends: 428 [2020-10-25 19:38:30,798 INFO L226 Difference]: Without dead ends: 231 [2020-10-25 19:38:30,799 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 [2020-10-25 19:38:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-25 19:38:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-10-25 19:38:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-25 19:38:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-10-25 19:38:30,808 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-10-25 19:38:30,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:30,809 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-10-25 19:38:30,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:30,809 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-10-25 19:38:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-25 19:38:30,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:30,818 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] [2020-10-25 19:38:30,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 19:38:30,819 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:30,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:30,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1901861672, now seen corresponding path program 1 times [2020-10-25 19:38:30,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:30,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648415897] [2020-10-25 19:38:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-25 19:38:30,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648415897] [2020-10-25 19:38:30,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:30,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:30,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405945876] [2020-10-25 19:38:30,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:30,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:30,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:30,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:30,913 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-10-25 19:38:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:30,957 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-10-25 19:38:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:30,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-25 19:38:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:30,961 INFO L225 Difference]: With dead ends: 661 [2020-10-25 19:38:30,962 INFO L226 Difference]: Without dead ends: 443 [2020-10-25 19:38:30,962 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 [2020-10-25 19:38:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-25 19:38:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-10-25 19:38:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-10-25 19:38:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-10-25 19:38:30,977 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-10-25 19:38:30,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:30,978 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-10-25 19:38:30,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-10-25 19:38:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-25 19:38:30,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:30,980 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] [2020-10-25 19:38:30,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 19:38:30,980 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:30,981 INFO L82 PathProgramCache]: Analyzing trace with hash 837467901, now seen corresponding path program 1 times [2020-10-25 19:38:30,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:30,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152154317] [2020-10-25 19:38:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-25 19:38:31,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152154317] [2020-10-25 19:38:31,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:31,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:31,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695855082] [2020-10-25 19:38:31,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:31,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:31,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:31,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:31,084 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-10-25 19:38:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:31,113 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-10-25 19:38:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:31,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-25 19:38:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:31,117 INFO L225 Difference]: With dead ends: 897 [2020-10-25 19:38:31,118 INFO L226 Difference]: Without dead ends: 464 [2020-10-25 19:38:31,119 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 [2020-10-25 19:38:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-25 19:38:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-25 19:38:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-25 19:38:31,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-10-25 19:38:31,132 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 106 [2020-10-25 19:38:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:31,132 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-10-25 19:38:31,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:31,133 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-10-25 19:38:31,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-25 19:38:31,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:31,135 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] [2020-10-25 19:38:31,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 19:38:31,135 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:31,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:31,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1077707647, now seen corresponding path program 1 times [2020-10-25 19:38:31,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:31,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537295533] [2020-10-25 19:38:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-25 19:38:31,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537295533] [2020-10-25 19:38:31,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:31,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:31,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130836410] [2020-10-25 19:38:31,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:31,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:31,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:31,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:31,235 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-10-25 19:38:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:31,272 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-10-25 19:38:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:31,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-25 19:38:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:31,276 INFO L225 Difference]: With dead ends: 945 [2020-10-25 19:38:31,276 INFO L226 Difference]: Without dead ends: 491 [2020-10-25 19:38:31,277 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 [2020-10-25 19:38:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-25 19:38:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-10-25 19:38:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-10-25 19:38:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-10-25 19:38:31,290 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-10-25 19:38:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:31,290 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-10-25 19:38:31,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-10-25 19:38:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-25 19:38:31,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:31,292 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] [2020-10-25 19:38:31,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 19:38:31,293 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:31,295 INFO L82 PathProgramCache]: Analyzing trace with hash -2015927886, now seen corresponding path program 1 times [2020-10-25 19:38:31,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:31,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752000463] [2020-10-25 19:38:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-25 19:38:31,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752000463] [2020-10-25 19:38:31,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:31,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:31,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119422708] [2020-10-25 19:38:31,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:31,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:31,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:31,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:31,394 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-10-25 19:38:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:31,441 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-10-25 19:38:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:31,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-25 19:38:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:31,446 INFO L225 Difference]: With dead ends: 709 [2020-10-25 19:38:31,446 INFO L226 Difference]: Without dead ends: 707 [2020-10-25 19:38:31,447 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 [2020-10-25 19:38:31,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-10-25 19:38:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-10-25 19:38:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-10-25 19:38:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-10-25 19:38:31,476 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-10-25 19:38:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:31,477 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-10-25 19:38:31,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-10-25 19:38:31,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-25 19:38:31,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:31,480 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] [2020-10-25 19:38:31,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 19:38:31,481 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:31,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:31,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1870688019, now seen corresponding path program 1 times [2020-10-25 19:38:31,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:31,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437389674] [2020-10-25 19:38:31,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-25 19:38:31,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437389674] [2020-10-25 19:38:31,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:31,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:31,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62315295] [2020-10-25 19:38:31,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:31,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:31,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:31,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:31,571 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-10-25 19:38:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:31,796 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-10-25 19:38:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:31,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-10-25 19:38:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:31,802 INFO L225 Difference]: With dead ends: 1530 [2020-10-25 19:38:31,802 INFO L226 Difference]: Without dead ends: 857 [2020-10-25 19:38:31,804 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 [2020-10-25 19:38:31,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-25 19:38:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-10-25 19:38:31,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-25 19:38:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-10-25 19:38:31,827 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 162 [2020-10-25 19:38:31,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:31,828 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-10-25 19:38:31,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-10-25 19:38:31,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-25 19:38:31,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:31,832 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] [2020-10-25 19:38:31,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 19:38:31,832 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:31,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:31,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1491644371, now seen corresponding path program 1 times [2020-10-25 19:38:31,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:31,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596892107] [2020-10-25 19:38:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-10-25 19:38:31,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596892107] [2020-10-25 19:38:31,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:31,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:31,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52694911] [2020-10-25 19:38:31,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:31,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:31,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:31,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:31,957 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-10-25 19:38:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:32,191 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-10-25 19:38:32,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:32,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-10-25 19:38:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:32,198 INFO L225 Difference]: With dead ends: 1892 [2020-10-25 19:38:32,198 INFO L226 Difference]: Without dead ends: 1054 [2020-10-25 19:38:32,200 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 [2020-10-25 19:38:32,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-10-25 19:38:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-10-25 19:38:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-25 19:38:32,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-10-25 19:38:32,230 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-10-25 19:38:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:32,230 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-10-25 19:38:32,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:32,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-10-25 19:38:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-25 19:38:32,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:32,235 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] [2020-10-25 19:38:32,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 19:38:32,236 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:32,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:32,236 INFO L82 PathProgramCache]: Analyzing trace with hash -637948485, now seen corresponding path program 1 times [2020-10-25 19:38:32,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:32,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666709262] [2020-10-25 19:38:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:32,336 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-25 19:38:32,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666709262] [2020-10-25 19:38:32,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:32,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:32,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377810264] [2020-10-25 19:38:32,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:32,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:32,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:32,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:32,339 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-10-25 19:38:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:32,570 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-10-25 19:38:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:32,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-10-25 19:38:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:32,577 INFO L225 Difference]: With dead ends: 2148 [2020-10-25 19:38:32,577 INFO L226 Difference]: Without dead ends: 1127 [2020-10-25 19:38:32,580 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 [2020-10-25 19:38:32,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-25 19:38:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-10-25 19:38:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-25 19:38:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-10-25 19:38:32,619 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-10-25 19:38:32,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:32,620 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-10-25 19:38:32,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-10-25 19:38:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-25 19:38:32,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:32,627 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] [2020-10-25 19:38:32,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 19:38:32,628 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:32,629 INFO L82 PathProgramCache]: Analyzing trace with hash 668090344, now seen corresponding path program 1 times [2020-10-25 19:38:32,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:32,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173302898] [2020-10-25 19:38:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-25 19:38:32,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173302898] [2020-10-25 19:38:32,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:32,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:32,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427502107] [2020-10-25 19:38:32,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:32,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:32,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:32,793 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-10-25 19:38:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:33,076 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-10-25 19:38:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:33,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-25 19:38:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:33,093 INFO L225 Difference]: With dead ends: 2298 [2020-10-25 19:38:33,093 INFO L226 Difference]: Without dead ends: 1208 [2020-10-25 19:38:33,096 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 [2020-10-25 19:38:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-25 19:38:33,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-10-25 19:38:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-10-25 19:38:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-10-25 19:38:33,134 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-10-25 19:38:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:33,135 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-10-25 19:38:33,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-10-25 19:38:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-25 19:38:33,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:33,140 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] [2020-10-25 19:38:33,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-25 19:38:33,141 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:33,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:33,141 INFO L82 PathProgramCache]: Analyzing trace with hash 786531818, now seen corresponding path program 1 times [2020-10-25 19:38:33,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:33,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309041577] [2020-10-25 19:38:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-25 19:38:33,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309041577] [2020-10-25 19:38:33,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:33,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:33,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724481636] [2020-10-25 19:38:33,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:33,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:33,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:33,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:33,266 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-10-25 19:38:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:33,497 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-10-25 19:38:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:33,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-25 19:38:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:33,505 INFO L225 Difference]: With dead ends: 2466 [2020-10-25 19:38:33,505 INFO L226 Difference]: Without dead ends: 1304 [2020-10-25 19:38:33,509 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 [2020-10-25 19:38:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-10-25 19:38:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-10-25 19:38:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-10-25 19:38:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-10-25 19:38:33,547 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-10-25 19:38:33,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:33,548 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-10-25 19:38:33,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:33,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-10-25 19:38:33,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-25 19:38:33,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:33,554 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] [2020-10-25 19:38:33,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-25 19:38:33,555 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:33,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:33,556 INFO L82 PathProgramCache]: Analyzing trace with hash 12496008, now seen corresponding path program 1 times [2020-10-25 19:38:33,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:33,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350471876] [2020-10-25 19:38:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:33,686 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-10-25 19:38:33,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350471876] [2020-10-25 19:38:33,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:33,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:33,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813944060] [2020-10-25 19:38:33,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:33,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:33,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:33,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:33,690 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-10-25 19:38:33,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:33,744 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-10-25 19:38:33,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:33,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-10-25 19:38:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:33,758 INFO L225 Difference]: With dead ends: 3718 [2020-10-25 19:38:33,758 INFO L226 Difference]: Without dead ends: 2490 [2020-10-25 19:38:33,761 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 [2020-10-25 19:38:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-10-25 19:38:33,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-10-25 19:38:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-10-25 19:38:33,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-10-25 19:38:33,836 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-10-25 19:38:33,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:33,837 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-10-25 19:38:33,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:33,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-10-25 19:38:33,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-25 19:38:33,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:33,861 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] [2020-10-25 19:38:33,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-25 19:38:33,861 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:33,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:33,862 INFO L82 PathProgramCache]: Analyzing trace with hash 130937482, now seen corresponding path program 1 times [2020-10-25 19:38:33,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:33,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357470876] [2020-10-25 19:38:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-10-25 19:38:33,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357470876] [2020-10-25 19:38:33,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:33,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:33,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605216159] [2020-10-25 19:38:33,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:33,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:33,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:33,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:33,997 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-10-25 19:38:34,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:34,292 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-10-25 19:38:34,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:34,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-10-25 19:38:34,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:34,310 INFO L225 Difference]: With dead ends: 5251 [2020-10-25 19:38:34,310 INFO L226 Difference]: Without dead ends: 2770 [2020-10-25 19:38:34,317 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 [2020-10-25 19:38:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-10-25 19:38:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-10-25 19:38:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-10-25 19:38:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-10-25 19:38:34,427 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-10-25 19:38:34,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:34,428 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-10-25 19:38:34,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-10-25 19:38:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-25 19:38:34,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:34,441 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] [2020-10-25 19:38:34,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-25 19:38:34,441 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:34,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:34,442 INFO L82 PathProgramCache]: Analyzing trace with hash -142796669, now seen corresponding path program 1 times [2020-10-25 19:38:34,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:34,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474607054] [2020-10-25 19:38:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-10-25 19:38:34,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474607054] [2020-10-25 19:38:34,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:34,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:34,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467902245] [2020-10-25 19:38:34,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:34,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:34,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:34,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:34,620 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-10-25 19:38:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:34,896 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-10-25 19:38:34,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:34,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-10-25 19:38:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:34,911 INFO L225 Difference]: With dead ends: 5443 [2020-10-25 19:38:34,911 INFO L226 Difference]: Without dead ends: 2764 [2020-10-25 19:38:34,915 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 [2020-10-25 19:38:34,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-10-25 19:38:34,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-10-25 19:38:34,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-10-25 19:38:34,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-10-25 19:38:34,997 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-10-25 19:38:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:34,997 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-10-25 19:38:34,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:34,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-10-25 19:38:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-25 19:38:35,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:35,007 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] [2020-10-25 19:38:35,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-25 19:38:35,007 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:35,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1408099866, now seen corresponding path program 1 times [2020-10-25 19:38:35,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:35,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478623770] [2020-10-25 19:38:35,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-25 19:38:35,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478623770] [2020-10-25 19:38:35,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:35,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:35,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622704612] [2020-10-25 19:38:35,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:35,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:35,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:35,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:35,154 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-10-25 19:38:35,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:35,367 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-10-25 19:38:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:35,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-10-25 19:38:35,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:35,381 INFO L225 Difference]: With dead ends: 5407 [2020-10-25 19:38:35,381 INFO L226 Difference]: Without dead ends: 2752 [2020-10-25 19:38:35,385 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 [2020-10-25 19:38:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-10-25 19:38:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-10-25 19:38:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-10-25 19:38:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-10-25 19:38:35,471 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 308 [2020-10-25 19:38:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:35,471 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-10-25 19:38:35,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-10-25 19:38:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-25 19:38:35,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:35,481 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] [2020-10-25 19:38:35,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-25 19:38:35,481 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:35,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1960500931, now seen corresponding path program 1 times [2020-10-25 19:38:35,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:35,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113564865] [2020-10-25 19:38:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-25 19:38:35,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113564865] [2020-10-25 19:38:35,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:35,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:35,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640329910] [2020-10-25 19:38:35,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:35,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:35,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:35,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:35,684 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-10-25 19:38:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:35,925 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-10-25 19:38:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:35,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-10-25 19:38:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:35,940 INFO L225 Difference]: With dead ends: 5653 [2020-10-25 19:38:35,940 INFO L226 Difference]: Without dead ends: 2998 [2020-10-25 19:38:35,944 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 [2020-10-25 19:38:35,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-10-25 19:38:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-10-25 19:38:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-10-25 19:38:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-10-25 19:38:36,025 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-10-25 19:38:36,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:36,026 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-10-25 19:38:36,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-10-25 19:38:36,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-25 19:38:36,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:36,035 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] [2020-10-25 19:38:36,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-25 19:38:36,036 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:36,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:36,036 INFO L82 PathProgramCache]: Analyzing trace with hash 806996379, now seen corresponding path program 1 times [2020-10-25 19:38:36,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:36,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408099441] [2020-10-25 19:38:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-10-25 19:38:36,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408099441] [2020-10-25 19:38:36,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:36,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:36,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747635231] [2020-10-25 19:38:36,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:36,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:36,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:36,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:36,269 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-10-25 19:38:36,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:36,353 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-10-25 19:38:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:36,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-10-25 19:38:36,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:36,397 INFO L225 Difference]: With dead ends: 7882 [2020-10-25 19:38:36,397 INFO L226 Difference]: Without dead ends: 5137 [2020-10-25 19:38:36,403 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 [2020-10-25 19:38:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-10-25 19:38:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-10-25 19:38:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-10-25 19:38:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-10-25 19:38:36,546 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-10-25 19:38:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:36,547 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-10-25 19:38:36,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-10-25 19:38:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-25 19:38:36,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:36,559 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] [2020-10-25 19:38:36,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-25 19:38:36,559 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:36,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:36,560 INFO L82 PathProgramCache]: Analyzing trace with hash 722980357, now seen corresponding path program 1 times [2020-10-25 19:38:36,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:36,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573489665] [2020-10-25 19:38:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-25 19:38:36,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573489665] [2020-10-25 19:38:36,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533213517] [2020-10-25 19:38:36,755 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 [2020-10-25 19:38:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:36,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 19:38:36,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:38:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-25 19:38:37,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 19:38:37,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-25 19:38:37,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329070759] [2020-10-25 19:38:37,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:38:37,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:37,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:38:37,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:38:37,176 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-10-25 19:38:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:37,765 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-10-25 19:38:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 19:38:37,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2020-10-25 19:38:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:37,785 INFO L225 Difference]: With dead ends: 10175 [2020-10-25 19:38:37,785 INFO L226 Difference]: Without dead ends: 7688 [2020-10-25 19:38:37,791 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 [2020-10-25 19:38:37,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-10-25 19:38:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-10-25 19:38:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-10-25 19:38:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-10-25 19:38:38,021 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 347 [2020-10-25 19:38:38,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:38,022 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-10-25 19:38:38,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:38:38,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-10-25 19:38:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-25 19:38:38,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:38,038 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] [2020-10-25 19:38:38,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-25 19:38:38,251 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:38,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:38,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1881562091, now seen corresponding path program 1 times [2020-10-25 19:38:38,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:38,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891867607] [2020-10-25 19:38:38,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-25 19:38:38,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891867607] [2020-10-25 19:38:38,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608926799] [2020-10-25 19:38:38,512 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 [2020-10-25 19:38:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:38,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 19:38:38,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:38:38,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-25 19:38:38,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 19:38:38,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-25 19:38:38,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101387824] [2020-10-25 19:38:38,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:38:38,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:38,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:38:38,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:38:38,876 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-10-25 19:38:39,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:39,334 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-10-25 19:38:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:38:39,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-10-25 19:38:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:39,353 INFO L225 Difference]: With dead ends: 12703 [2020-10-25 19:38:39,354 INFO L226 Difference]: Without dead ends: 7058 [2020-10-25 19:38:39,365 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 [2020-10-25 19:38:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-10-25 19:38:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-10-25 19:38:39,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-10-25 19:38:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-10-25 19:38:39,564 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-10-25 19:38:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:39,565 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-10-25 19:38:39,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:38:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-10-25 19:38:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-25 19:38:39,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:39,581 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] [2020-10-25 19:38:39,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-25 19:38:39,794 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:39,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:39,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1433443056, now seen corresponding path program 1 times [2020-10-25 19:38:39,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:39,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688230080] [2020-10-25 19:38:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-10-25 19:38:40,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688230080] [2020-10-25 19:38:40,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:38:40,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:38:40,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577729103] [2020-10-25 19:38:40,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:40,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:40,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:40,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:38:40,015 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-10-25 19:38:40,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:40,258 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-10-25 19:38:40,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:40,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-10-25 19:38:40,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:40,266 INFO L225 Difference]: With dead ends: 11133 [2020-10-25 19:38:40,266 INFO L226 Difference]: Without dead ends: 3109 [2020-10-25 19:38:40,275 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 [2020-10-25 19:38:40,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-10-25 19:38:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-10-25 19:38:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-10-25 19:38:40,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-10-25 19:38:40,346 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-10-25 19:38:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:40,346 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-10-25 19:38:40,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:40,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-10-25 19:38:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-10-25 19:38:40,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:40,353 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] [2020-10-25 19:38:40,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-25 19:38:40,353 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:40,354 INFO L82 PathProgramCache]: Analyzing trace with hash -517038626, now seen corresponding path program 1 times [2020-10-25 19:38:40,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:40,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515263410] [2020-10-25 19:38:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2020-10-25 19:38:40,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515263410] [2020-10-25 19:38:40,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246211696] [2020-10-25 19:38:40,725 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 [2020-10-25 19:38:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:40,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 19:38:40,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:38:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2020-10-25 19:38:41,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:38:41,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 19:38:41,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936098790] [2020-10-25 19:38:41,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:41,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:41,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:41,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:38:41,565 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-10-25 19:38:41,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:41,609 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-10-25 19:38:41,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:41,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 497 [2020-10-25 19:38:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:41,615 INFO L225 Difference]: With dead ends: 3068 [2020-10-25 19:38:41,616 INFO L226 Difference]: Without dead ends: 2571 [2020-10-25 19:38:41,617 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 [2020-10-25 19:38:41,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-10-25 19:38:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-10-25 19:38:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-10-25 19:38:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-10-25 19:38:41,673 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 497 [2020-10-25 19:38:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:41,674 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-10-25 19:38:41,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-10-25 19:38:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-10-25 19:38:41,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:41,681 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] [2020-10-25 19:38:41,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-25 19:38:41,894 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:41,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:41,896 INFO L82 PathProgramCache]: Analyzing trace with hash 706380836, now seen corresponding path program 1 times [2020-10-25 19:38:41,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:41,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594933218] [2020-10-25 19:38:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1546 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2020-10-25 19:38:42,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594933218] [2020-10-25 19:38:42,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610571515] [2020-10-25 19:38:42,143 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 [2020-10-25 19:38:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:42,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:38:42,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:38:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2339 trivial. 0 not checked. [2020-10-25 19:38:42,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:38:42,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 19:38:42,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007195939] [2020-10-25 19:38:42,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:38:42,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:42,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:38:42,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:38:42,511 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-10-25 19:38:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:42,693 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-10-25 19:38:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:38:42,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2020-10-25 19:38:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:42,699 INFO L225 Difference]: With dead ends: 5167 [2020-10-25 19:38:42,699 INFO L226 Difference]: Without dead ends: 2656 [2020-10-25 19:38:42,703 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 [2020-10-25 19:38:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-10-25 19:38:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-10-25 19:38:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-10-25 19:38:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-10-25 19:38:42,763 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 498 [2020-10-25 19:38:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:42,764 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-10-25 19:38:42,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:38:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-10-25 19:38:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2020-10-25 19:38:42,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:38:42,772 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] [2020-10-25 19:38:42,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:38:42,985 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:38:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:38:42,986 INFO L82 PathProgramCache]: Analyzing trace with hash 180586689, now seen corresponding path program 2 times [2020-10-25 19:38:42,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:38:42,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210338880] [2020-10-25 19:38:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:38:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:38:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-10-25 19:38:43,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210338880] [2020-10-25 19:38:43,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111188849] [2020-10-25 19:38:43,293 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 [2020-10-25 19:38:43,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-25 19:38:43,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 19:38:43,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 19:38:43,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:38:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-10-25 19:38:43,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 19:38:43,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-25 19:38:43,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759366821] [2020-10-25 19:38:43,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:38:43,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:38:43,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:38:43,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:38:43,710 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-10-25 19:38:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:38:43,935 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-10-25 19:38:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:38:43,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 609 [2020-10-25 19:38:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:38:43,936 INFO L225 Difference]: With dead ends: 2888 [2020-10-25 19:38:43,937 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:38:43,940 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 [2020-10-25 19:38:43,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:38:43,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:38:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:38:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:38:43,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 609 [2020-10-25 19:38:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:38:43,941 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:38:43,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:38:43,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:38:43,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:38:44,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-25 19:38:44,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:38:44,678 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-10-25 19:38:45,004 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-10-25 19:38:45,803 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-10-25 19:38:46,267 INFO L274 CegarLoopResult]: For program point L498(lines 498 500) no Hoare annotation was computed. [2020-10-25 19:38:46,268 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 500) no Hoare annotation was computed. [2020-10-25 19:38:46,268 INFO L274 CegarLoopResult]: For program point L300(lines 300 304) no Hoare annotation was computed. [2020-10-25 19:38:46,268 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 304) no Hoare annotation was computed. [2020-10-25 19:38:46,268 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 19:38:46,269 INFO L277 CegarLoopResult]: At program point L565(lines 108 566) the Hoare annotation is: true [2020-10-25 19:38:46,269 INFO L274 CegarLoopResult]: For program point L202(lines 202 515) no Hoare annotation was computed. [2020-10-25 19:38:46,269 INFO L274 CegarLoopResult]: For program point L169(lines 169 526) no Hoare annotation was computed. [2020-10-25 19:38:46,269 INFO L274 CegarLoopResult]: For program point L136(lines 136 537) no Hoare annotation was computed. [2020-10-25 19:38:46,269 INFO L274 CegarLoopResult]: For program point L103(lines 103 107) no Hoare annotation was computed. [2020-10-25 19:38:46,270 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))) [2020-10-25 19:38:46,270 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)) [2020-10-25 19:38:46,270 INFO L274 CegarLoopResult]: For program point L104(lines 104 106) no Hoare annotation was computed. [2020-10-25 19:38:46,270 INFO L274 CegarLoopResult]: For program point L237(lines 237 253) no Hoare annotation was computed. [2020-10-25 19:38:46,270 INFO L274 CegarLoopResult]: For program point L237-2(lines 212 510) no Hoare annotation was computed. [2020-10-25 19:38:46,270 INFO L274 CegarLoopResult]: For program point L469(lines 469 481) no Hoare annotation was computed. [2020-10-25 19:38:46,270 INFO L274 CegarLoopResult]: For program point L436(lines 436 450) no Hoare annotation was computed. [2020-10-25 19:38:46,271 INFO L274 CegarLoopResult]: For program point L436-1(lines 436 450) no Hoare annotation was computed. [2020-10-25 19:38:46,271 INFO L274 CegarLoopResult]: For program point L469-2(lines 469 481) no Hoare annotation was computed. [2020-10-25 19:38:46,271 INFO L274 CegarLoopResult]: For program point L337(lines 337 340) no Hoare annotation was computed. [2020-10-25 19:38:46,273 INFO L274 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-10-25 19:38:46,273 INFO L274 CegarLoopResult]: For program point L205(lines 205 514) no Hoare annotation was computed. [2020-10-25 19:38:46,273 INFO L274 CegarLoopResult]: For program point L271-2(lines 212 510) no Hoare annotation was computed. [2020-10-25 19:38:46,273 INFO L274 CegarLoopResult]: For program point L172(lines 172 525) no Hoare annotation was computed. [2020-10-25 19:38:46,273 INFO L274 CegarLoopResult]: For program point L139(lines 139 536) no Hoare annotation was computed. [2020-10-25 19:38:46,273 INFO L274 CegarLoopResult]: For program point L503(lines 503 505) no Hoare annotation was computed. [2020-10-25 19:38:46,274 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))) [2020-10-25 19:38:46,275 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)) [2020-10-25 19:38:46,275 INFO L274 CegarLoopResult]: For program point L570(lines 570 572) no Hoare annotation was computed. [2020-10-25 19:38:46,275 INFO L274 CegarLoopResult]: For program point L570-2(lines 570 572) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L372(lines 372 374) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L208(lines 208 513) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L175(lines 175 524) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L142(lines 142 535) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L109-1(lines 86 576) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L274 CegarLoopResult]: For program point L440(lines 440 446) no Hoare annotation was computed. [2020-10-25 19:38:46,276 INFO L277 CegarLoopResult]: At program point L209(lines 208 513) the Hoare annotation is: true [2020-10-25 19:38:46,277 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))) [2020-10-25 19:38:46,277 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-25 19:38:46,277 INFO L274 CegarLoopResult]: For program point L243(lines 243 246) no Hoare annotation was computed. [2020-10-25 19:38:46,278 INFO L274 CegarLoopResult]: For program point L475(lines 475 478) no Hoare annotation was computed. [2020-10-25 19:38:46,278 INFO L277 CegarLoopResult]: At program point L211(lines 210 513) the Hoare annotation is: true [2020-10-25 19:38:46,278 INFO L274 CegarLoopResult]: For program point L178(lines 178 523) no Hoare annotation was computed. [2020-10-25 19:38:46,278 INFO L274 CegarLoopResult]: For program point L145(lines 145 534) no Hoare annotation was computed. [2020-10-25 19:38:46,278 INFO L274 CegarLoopResult]: For program point L112(lines 112 545) no Hoare annotation was computed. [2020-10-25 19:38:46,278 INFO L277 CegarLoopResult]: At program point L575(lines 12 577) the Hoare annotation is: true [2020-10-25 19:38:46,279 INFO L274 CegarLoopResult]: For program point L311(lines 311 321) no Hoare annotation was computed. [2020-10-25 19:38:46,279 INFO L274 CegarLoopResult]: For program point L311-2(lines 311 321) no Hoare annotation was computed. [2020-10-25 19:38:46,279 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)) [2020-10-25 19:38:46,279 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)) [2020-10-25 19:38:46,279 INFO L274 CegarLoopResult]: For program point L345(lines 345 347) no Hoare annotation was computed. [2020-10-25 19:38:46,280 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)))) [2020-10-25 19:38:46,280 INFO L274 CegarLoopResult]: For program point L412(lines 412 416) no Hoare annotation was computed. [2020-10-25 19:38:46,280 INFO L270 CegarLoopResult]: At program point L346(lines 86 576) the Hoare annotation is: false [2020-10-25 19:38:46,280 INFO L274 CegarLoopResult]: For program point L412-2(lines 212 510) no Hoare annotation was computed. [2020-10-25 19:38:46,280 INFO L274 CegarLoopResult]: For program point L181(lines 181 522) no Hoare annotation was computed. [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L148(lines 148 533) no Hoare annotation was computed. [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L115(lines 115 544) no Hoare annotation was computed. [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L248(lines 248 251) no Hoare annotation was computed. [2020-10-25 19:38:46,281 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)) [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L546(lines 546 562) no Hoare annotation was computed. [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L381(lines 381 383) no Hoare annotation was computed. [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L348(lines 348 350) no Hoare annotation was computed. [2020-10-25 19:38:46,281 INFO L274 CegarLoopResult]: For program point L315(lines 315 317) no Hoare annotation was computed. [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L282(lines 282 284) no Hoare annotation was computed. [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L315-2(lines 313 321) no Hoare annotation was computed. [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L547(lines 547 561) no Hoare annotation was computed. [2020-10-25 19:38:46,282 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)) [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L184(lines 184 521) no Hoare annotation was computed. [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L151(lines 151 532) no Hoare annotation was computed. [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L118(lines 118 543) no Hoare annotation was computed. [2020-10-25 19:38:46,282 INFO L274 CegarLoopResult]: For program point L548(lines 548 553) no Hoare annotation was computed. [2020-10-25 19:38:46,283 INFO L274 CegarLoopResult]: For program point L548-2(lines 547 561) no Hoare annotation was computed. [2020-10-25 19:38:46,283 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:38:46,283 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)) [2020-10-25 19:38:46,283 INFO L274 CegarLoopResult]: For program point L550(lines 550 552) no Hoare annotation was computed. [2020-10-25 19:38:46,283 INFO L274 CegarLoopResult]: For program point L385(lines 385 390) no Hoare annotation was computed. [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L385-2(lines 385 390) no Hoare annotation was computed. [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L187(lines 187 520) no Hoare annotation was computed. [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L154(lines 154 531) no Hoare annotation was computed. [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L121(lines 121 542) no Hoare annotation was computed. [2020-10-25 19:38:46,284 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)) [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L486-1(lines 486 488) no Hoare annotation was computed. [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-10-25 19:38:46,284 INFO L274 CegarLoopResult]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-10-25 19:38:46,285 INFO L277 CegarLoopResult]: At program point L586(lines 578 588) the Hoare annotation is: true [2020-10-25 19:38:46,285 INFO L274 CegarLoopResult]: For program point L421(lines 421 424) no Hoare annotation was computed. [2020-10-25 19:38:46,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:38:46,285 INFO L274 CegarLoopResult]: For program point L190(lines 190 519) no Hoare annotation was computed. [2020-10-25 19:38:46,285 INFO L274 CegarLoopResult]: For program point L157(lines 157 530) no Hoare annotation was computed. [2020-10-25 19:38:46,285 INFO L274 CegarLoopResult]: For program point L124(lines 124 541) no Hoare annotation was computed. [2020-10-25 19:38:46,286 INFO L274 CegarLoopResult]: For program point L290(lines 290 296) no Hoare annotation was computed. [2020-10-25 19:38:46,286 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)))) [2020-10-25 19:38:46,286 INFO L274 CegarLoopResult]: For program point L555(lines 555 559) no Hoare annotation was computed. [2020-10-25 19:38:46,286 INFO L274 CegarLoopResult]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-10-25 19:38:46,286 INFO L274 CegarLoopResult]: For program point L357(lines 357 359) no Hoare annotation was computed. [2020-10-25 19:38:46,286 INFO L274 CegarLoopResult]: For program point L259(lines 259 262) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L193(lines 193 518) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L160(lines 160 529) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L127(lines 127 540) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L293(lines 293 295) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L293-2(lines 212 510) no Hoare annotation was computed. [2020-10-25 19:38:46,287 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)) [2020-10-25 19:38:46,287 INFO L274 CegarLoopResult]: For program point L95(lines 95 101) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L492(lines 492 494) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L492-2(lines 492 494) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L459-2(lines 459 463) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L360(lines 360 364) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L196(lines 196 517) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L163(lines 163 528) no Hoare annotation was computed. [2020-10-25 19:38:46,288 INFO L274 CegarLoopResult]: For program point L130(lines 130 539) no Hoare annotation was computed. [2020-10-25 19:38:46,289 INFO L274 CegarLoopResult]: For program point L329(lines 329 331) no Hoare annotation was computed. [2020-10-25 19:38:46,289 INFO L274 CegarLoopResult]: For program point L329-2(lines 212 510) no Hoare annotation was computed. [2020-10-25 19:38:46,289 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))) [2020-10-25 19:38:46,289 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)) [2020-10-25 19:38:46,289 INFO L274 CegarLoopResult]: For program point L98(lines 98 100) no Hoare annotation was computed. [2020-10-25 19:38:46,289 INFO L274 CegarLoopResult]: For program point L98-2(lines 95 101) no Hoare annotation was computed. [2020-10-25 19:38:46,289 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:38:46,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 19:38:46,290 INFO L274 CegarLoopResult]: For program point L429(lines 429 431) no Hoare annotation was computed. [2020-10-25 19:38:46,290 INFO L274 CegarLoopResult]: For program point L396(lines 396 398) no Hoare annotation was computed. [2020-10-25 19:38:46,290 INFO L274 CegarLoopResult]: For program point L199(lines 199 516) no Hoare annotation was computed. [2020-10-25 19:38:46,290 INFO L274 CegarLoopResult]: For program point L166(lines 166 527) no Hoare annotation was computed. [2020-10-25 19:38:46,290 INFO L274 CegarLoopResult]: For program point L133(lines 133 538) no Hoare annotation was computed. [2020-10-25 19:38:46,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:38:46 BoogieIcfgContainer [2020-10-25 19:38:46,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:38:46,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:38:46,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:38:46,321 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:38:46,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:38:28" (3/4) ... [2020-10-25 19:38:46,325 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:38:46,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:38:46,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:38:46,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:38:46,347 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:38:46,461 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:38:46,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:38:46,462 INFO L168 Benchmark]: Toolchain (without parser) took 19755.44 ms. Allocated memory was 46.1 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 29.5 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 296.4 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,463 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 37.7 MB. Free memory is still 20.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:38:46,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.09 ms. Allocated memory is still 46.1 MB. Free memory was 28.9 MB in the beginning and 26.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.69 ms. Allocated memory is still 46.1 MB. Free memory was 26.0 MB in the beginning and 23.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,464 INFO L168 Benchmark]: Boogie Preprocessor took 42.93 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 21.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,465 INFO L168 Benchmark]: RCFGBuilder took 1031.33 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.0 MB in the beginning and 28.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,465 INFO L168 Benchmark]: TraceAbstraction took 18024.07 ms. Allocated memory was 58.7 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 28.2 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 659.5 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,466 INFO L168 Benchmark]: Witness Printer took 140.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 19:38:46,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 37.7 MB. Free memory is still 20.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 437.09 ms. Allocated memory is still 46.1 MB. Free memory was 28.9 MB in the beginning and 26.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.69 ms. Allocated memory is still 46.1 MB. Free memory was 26.0 MB in the beginning and 23.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.93 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 21.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1031.33 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.0 MB in the beginning and 28.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18024.07 ms. Allocated memory was 58.7 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 28.2 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 659.5 MB. Max. memory is 16.1 GB. * Witness Printer took 140.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2134 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2412 GetRequests, 2375 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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: 1.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.0s 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...