./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer --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 c14635b48a1cad23828e85d86c9c53e48c3a7731 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:16:14,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:16:14,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:16:14,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:16:14,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:16:14,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:16:14,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:16:14,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:16:14,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:16:14,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:16:14,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:16:14,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:16:14,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:16:14,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:16:14,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:16:14,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:16:14,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:16:14,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:16:14,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:16:14,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:16:14,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:16:14,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:16:14,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:16:14,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:16:14,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:16:14,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:16:14,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:16:14,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:16:14,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:16:14,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:16:14,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:16:14,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:16:14,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:16:14,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:16:14,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:16:14,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:16:14,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:16:14,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:16:14,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:16:14,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:16:14,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:16:14,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:16:15,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:16:15,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:16:15,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:16:15,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:16:15,019 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:16:15,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:16:15,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:16:15,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:16:15,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:16:15,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:16:15,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:16:15,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:16:15,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:16:15,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:16:15,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:16:15,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:16:15,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:16:15,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:16:15,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:16:15,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:16:15,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:16:15,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:16:15,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:16:15,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:16:15,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:16:15,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:16:15,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:16:15,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:16:15,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:16:15,026 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:/tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c14635b48a1cad23828e85d86c9c53e48c3a7731 [2020-11-29 18:16:15,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:16:15,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:16:15,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:16:15,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:16:15,370 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:16:15,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-11-29 18:16:15,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/data/a772ec635/f9239103056a4a54a4b1cc23eea7278e/FLAGdc85b3edb [2020-11-29 18:16:16,143 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:16:16,144 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-11-29 18:16:16,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/data/a772ec635/f9239103056a4a54a4b1cc23eea7278e/FLAGdc85b3edb [2020-11-29 18:16:16,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/data/a772ec635/f9239103056a4a54a4b1cc23eea7278e [2020-11-29 18:16:16,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:16:16,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:16:16,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:16:16,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:16:16,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:16:16,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:16,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6818875f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16, skipping insertion in model container [2020-11-29 18:16:16,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:16,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:16:16,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:16:16,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:16:16,854 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:16:16,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:16:16,938 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:16:16,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16 WrapperNode [2020-11-29 18:16:16,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:16:16,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:16:16,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:16:16,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:16:16,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:16,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:16:17,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:16:17,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:16:17,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:16:17,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... [2020-11-29 18:16:17,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:16:17,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:16:17,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:16:17,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:16:17,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/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 [2020-11-29 18:16:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:16:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:16:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:16:17,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:16:17,402 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 18:16:18,372 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-11-29 18:16:18,373 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-11-29 18:16:18,390 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:16:18,391 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 18:16:18,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:18 BoogieIcfgContainer [2020-11-29 18:16:18,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:16:18,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:16:18,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:16:18,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:16:18,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:16:16" (1/3) ... [2020-11-29 18:16:18,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b56b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:18, skipping insertion in model container [2020-11-29 18:16:18,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:16" (2/3) ... [2020-11-29 18:16:18,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b56b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:18, skipping insertion in model container [2020-11-29 18:16:18,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:18" (3/3) ... [2020-11-29 18:16:18,407 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2020-11-29 18:16:18,424 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:16:18,429 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:16:18,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:16:18,491 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:16:18,491 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:16:18,491 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:16:18,491 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:16:18,492 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:16:18,492 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:16:18,492 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:16:18,492 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:16:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-11-29 18:16:18,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 18:16:18,532 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:18,533 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, 1] [2020-11-29 18:16:18,534 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:18,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:18,542 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2020-11-29 18:16:18,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:18,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565494089] [2020-11-29 18:16:18,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:16:18,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565494089] [2020-11-29 18:16:18,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:18,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:18,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60325729] [2020-11-29 18:16:18,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:18,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:18,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:18,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:18,923 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2020-11-29 18:16:19,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:19,231 INFO L93 Difference]: Finished difference Result 248 states and 424 transitions. [2020-11-29 18:16:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:19,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 18:16:19,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:19,265 INFO L225 Difference]: With dead ends: 248 [2020-11-29 18:16:19,266 INFO L226 Difference]: Without dead ends: 113 [2020-11-29 18:16:19,270 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 [2020-11-29 18:16:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-29 18:16:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-29 18:16:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-29 18:16:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2020-11-29 18:16:19,345 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2020-11-29 18:16:19,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:19,347 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2020-11-29 18:16:19,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2020-11-29 18:16:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-29 18:16:19,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:19,355 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] [2020-11-29 18:16:19,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:16:19,356 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:19,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2020-11-29 18:16:19,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:19,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983216284] [2020-11-29 18:16:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:16:19,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983216284] [2020-11-29 18:16:19,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:19,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:19,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727582298] [2020-11-29 18:16:19,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:19,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:19,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:19,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:19,584 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand 3 states. [2020-11-29 18:16:19,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:19,872 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-11-29 18:16:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:19,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-29 18:16:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:19,876 INFO L225 Difference]: With dead ends: 233 [2020-11-29 18:16:19,876 INFO L226 Difference]: Without dead ends: 131 [2020-11-29 18:16:19,878 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 [2020-11-29 18:16:19,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-29 18:16:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-11-29 18:16:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-29 18:16:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2020-11-29 18:16:19,910 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2020-11-29 18:16:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:19,912 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2020-11-29 18:16:19,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2020-11-29 18:16:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 18:16:19,916 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:19,917 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] [2020-11-29 18:16:19,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:16:19,917 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:19,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:19,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2020-11-29 18:16:19,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:19,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816449940] [2020-11-29 18:16:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:16:20,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816449940] [2020-11-29 18:16:20,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:20,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:20,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271539863] [2020-11-29 18:16:20,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:20,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:20,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:20,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:20,063 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand 3 states. [2020-11-29 18:16:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:20,105 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2020-11-29 18:16:20,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:20,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-29 18:16:20,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:20,112 INFO L225 Difference]: With dead ends: 271 [2020-11-29 18:16:20,112 INFO L226 Difference]: Without dead ends: 154 [2020-11-29 18:16:20,113 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 [2020-11-29 18:16:20,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-29 18:16:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-29 18:16:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-29 18:16:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2020-11-29 18:16:20,137 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2020-11-29 18:16:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:20,137 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2020-11-29 18:16:20,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2020-11-29 18:16:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 18:16:20,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:20,145 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] [2020-11-29 18:16:20,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:16:20,146 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:20,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2020-11-29 18:16:20,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:20,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408197503] [2020-11-29 18:16:20,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:16:20,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408197503] [2020-11-29 18:16:20,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:20,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:20,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62243678] [2020-11-29 18:16:20,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:20,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:20,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:20,253 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand 3 states. [2020-11-29 18:16:20,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:20,521 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2020-11-29 18:16:20,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:20,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-29 18:16:20,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:20,524 INFO L225 Difference]: With dead ends: 292 [2020-11-29 18:16:20,524 INFO L226 Difference]: Without dead ends: 175 [2020-11-29 18:16:20,526 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 [2020-11-29 18:16:20,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-29 18:16:20,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-11-29 18:16:20,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-29 18:16:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2020-11-29 18:16:20,558 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2020-11-29 18:16:20,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:20,559 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2020-11-29 18:16:20,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2020-11-29 18:16:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 18:16:20,561 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:20,562 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] [2020-11-29 18:16:20,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:16:20,562 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:20,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:20,563 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2020-11-29 18:16:20,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:20,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152992990] [2020-11-29 18:16:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-29 18:16:20,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152992990] [2020-11-29 18:16:20,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:20,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:20,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952374395] [2020-11-29 18:16:20,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:20,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:20,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:20,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:20,730 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand 3 states. [2020-11-29 18:16:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:20,795 INFO L93 Difference]: Finished difference Result 436 states and 638 transitions. [2020-11-29 18:16:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:20,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-29 18:16:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:20,802 INFO L225 Difference]: With dead ends: 436 [2020-11-29 18:16:20,802 INFO L226 Difference]: Without dead ends: 302 [2020-11-29 18:16:20,806 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 [2020-11-29 18:16:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-29 18:16:20,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2020-11-29 18:16:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-11-29 18:16:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 435 transitions. [2020-11-29 18:16:20,844 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 435 transitions. Word has length 68 [2020-11-29 18:16:20,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:20,846 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 435 transitions. [2020-11-29 18:16:20,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:20,847 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 435 transitions. [2020-11-29 18:16:20,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-29 18:16:20,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:20,856 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, 1] [2020-11-29 18:16:20,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:16:20,856 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:20,857 INFO L82 PathProgramCache]: Analyzing trace with hash 562572643, now seen corresponding path program 1 times [2020-11-29 18:16:20,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:20,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928373781] [2020-11-29 18:16:20,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:16:20,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928373781] [2020-11-29 18:16:20,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:20,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:20,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441388957] [2020-11-29 18:16:20,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:20,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:20,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:20,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:20,971 INFO L87 Difference]: Start difference. First operand 302 states and 435 transitions. Second operand 3 states. [2020-11-29 18:16:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:21,015 INFO L93 Difference]: Finished difference Result 588 states and 849 transitions. [2020-11-29 18:16:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:21,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-11-29 18:16:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:21,023 INFO L225 Difference]: With dead ends: 588 [2020-11-29 18:16:21,023 INFO L226 Difference]: Without dead ends: 323 [2020-11-29 18:16:21,025 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 [2020-11-29 18:16:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-29 18:16:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-11-29 18:16:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-11-29 18:16:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 462 transitions. [2020-11-29 18:16:21,051 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 462 transitions. Word has length 69 [2020-11-29 18:16:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:21,052 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 462 transitions. [2020-11-29 18:16:21,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 462 transitions. [2020-11-29 18:16:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-29 18:16:21,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:21,054 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, 1] [2020-11-29 18:16:21,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:16:21,054 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:21,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:21,058 INFO L82 PathProgramCache]: Analyzing trace with hash 777921003, now seen corresponding path program 1 times [2020-11-29 18:16:21,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:21,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903442253] [2020-11-29 18:16:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:21,169 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-29 18:16:21,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903442253] [2020-11-29 18:16:21,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:21,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:21,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605399723] [2020-11-29 18:16:21,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:21,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:21,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:21,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:21,177 INFO L87 Difference]: Start difference. First operand 323 states and 462 transitions. Second operand 3 states. [2020-11-29 18:16:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:21,454 INFO L93 Difference]: Finished difference Result 657 states and 958 transitions. [2020-11-29 18:16:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:21,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-11-29 18:16:21,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:21,460 INFO L225 Difference]: With dead ends: 657 [2020-11-29 18:16:21,460 INFO L226 Difference]: Without dead ends: 371 [2020-11-29 18:16:21,462 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 [2020-11-29 18:16:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-11-29 18:16:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 365. [2020-11-29 18:16:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-11-29 18:16:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2020-11-29 18:16:21,484 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 514 transitions. Word has length 86 [2020-11-29 18:16:21,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:21,486 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-11-29 18:16:21,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:21,486 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 514 transitions. [2020-11-29 18:16:21,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-29 18:16:21,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:21,493 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] [2020-11-29 18:16:21,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:16:21,493 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:21,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:21,494 INFO L82 PathProgramCache]: Analyzing trace with hash -97425693, now seen corresponding path program 1 times [2020-11-29 18:16:21,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:21,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470822288] [2020-11-29 18:16:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-29 18:16:21,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470822288] [2020-11-29 18:16:21,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:21,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:21,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339664955] [2020-11-29 18:16:21,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:21,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:21,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:21,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:21,619 INFO L87 Difference]: Start difference. First operand 365 states and 514 transitions. Second operand 3 states. [2020-11-29 18:16:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:21,692 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2020-11-29 18:16:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:21,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-29 18:16:21,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:21,697 INFO L225 Difference]: With dead ends: 520 [2020-11-29 18:16:21,698 INFO L226 Difference]: Without dead ends: 518 [2020-11-29 18:16:21,698 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 [2020-11-29 18:16:21,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-11-29 18:16:21,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2020-11-29 18:16:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-11-29 18:16:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 735 transitions. [2020-11-29 18:16:21,725 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 735 transitions. Word has length 106 [2020-11-29 18:16:21,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:21,725 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 735 transitions. [2020-11-29 18:16:21,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 735 transitions. [2020-11-29 18:16:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-11-29 18:16:21,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:21,729 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:21,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:16:21,730 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:21,730 INFO L82 PathProgramCache]: Analyzing trace with hash -833396868, now seen corresponding path program 1 times [2020-11-29 18:16:21,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:21,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121136628] [2020-11-29 18:16:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-29 18:16:21,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121136628] [2020-11-29 18:16:21,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:21,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:21,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177310378] [2020-11-29 18:16:21,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:21,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:21,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:21,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:21,861 INFO L87 Difference]: Start difference. First operand 518 states and 735 transitions. Second operand 3 states. [2020-11-29 18:16:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:22,206 INFO L93 Difference]: Finished difference Result 1149 states and 1685 transitions. [2020-11-29 18:16:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:22,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-11-29 18:16:22,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:22,214 INFO L225 Difference]: With dead ends: 1149 [2020-11-29 18:16:22,214 INFO L226 Difference]: Without dead ends: 665 [2020-11-29 18:16:22,215 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 [2020-11-29 18:16:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-11-29 18:16:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 641. [2020-11-29 18:16:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-11-29 18:16:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 933 transitions. [2020-11-29 18:16:22,261 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 933 transitions. Word has length 124 [2020-11-29 18:16:22,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:22,262 INFO L481 AbstractCegarLoop]: Abstraction has 641 states and 933 transitions. [2020-11-29 18:16:22,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 933 transitions. [2020-11-29 18:16:22,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-11-29 18:16:22,265 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:22,266 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:22,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:16:22,266 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:22,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:22,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1117892099, now seen corresponding path program 1 times [2020-11-29 18:16:22,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:22,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797029800] [2020-11-29 18:16:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-11-29 18:16:22,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797029800] [2020-11-29 18:16:22,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:22,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:22,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389275211] [2020-11-29 18:16:22,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:22,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:22,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:22,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:22,385 INFO L87 Difference]: Start difference. First operand 641 states and 933 transitions. Second operand 3 states. [2020-11-29 18:16:22,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:22,714 INFO L93 Difference]: Finished difference Result 1523 states and 2284 transitions. [2020-11-29 18:16:22,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:22,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-11-29 18:16:22,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:22,722 INFO L225 Difference]: With dead ends: 1523 [2020-11-29 18:16:22,722 INFO L226 Difference]: Without dead ends: 868 [2020-11-29 18:16:22,724 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 [2020-11-29 18:16:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-11-29 18:16:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 830. [2020-11-29 18:16:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-11-29 18:16:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1185 transitions. [2020-11-29 18:16:22,764 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1185 transitions. Word has length 150 [2020-11-29 18:16:22,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:22,765 INFO L481 AbstractCegarLoop]: Abstraction has 830 states and 1185 transitions. [2020-11-29 18:16:22,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1185 transitions. [2020-11-29 18:16:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-29 18:16:22,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:22,769 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:22,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:16:22,770 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:22,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:22,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1900103119, now seen corresponding path program 1 times [2020-11-29 18:16:22,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:22,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997365235] [2020-11-29 18:16:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-11-29 18:16:22,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997365235] [2020-11-29 18:16:22,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:22,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:22,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576917996] [2020-11-29 18:16:22,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:22,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:22,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:22,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:22,887 INFO L87 Difference]: Start difference. First operand 830 states and 1185 transitions. Second operand 3 states. [2020-11-29 18:16:23,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:23,219 INFO L93 Difference]: Finished difference Result 1779 states and 2561 transitions. [2020-11-29 18:16:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:23,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-11-29 18:16:23,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:23,228 INFO L225 Difference]: With dead ends: 1779 [2020-11-29 18:16:23,228 INFO L226 Difference]: Without dead ends: 941 [2020-11-29 18:16:23,230 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 [2020-11-29 18:16:23,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-11-29 18:16:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 905. [2020-11-29 18:16:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-11-29 18:16:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1281 transitions. [2020-11-29 18:16:23,266 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1281 transitions. Word has length 171 [2020-11-29 18:16:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:23,267 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1281 transitions. [2020-11-29 18:16:23,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1281 transitions. [2020-11-29 18:16:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-29 18:16:23,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:23,272 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2020-11-29 18:16:23,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:16:23,272 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:23,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:23,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1650023748, now seen corresponding path program 1 times [2020-11-29 18:16:23,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:23,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848148436] [2020-11-29 18:16:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-11-29 18:16:23,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848148436] [2020-11-29 18:16:23,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:23,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:23,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171117860] [2020-11-29 18:16:23,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:23,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:23,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:23,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:23,387 INFO L87 Difference]: Start difference. First operand 905 states and 1281 transitions. Second operand 3 states. [2020-11-29 18:16:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:23,739 INFO L93 Difference]: Finished difference Result 1929 states and 2750 transitions. [2020-11-29 18:16:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:23,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-11-29 18:16:23,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:23,748 INFO L225 Difference]: With dead ends: 1929 [2020-11-29 18:16:23,749 INFO L226 Difference]: Without dead ends: 1022 [2020-11-29 18:16:23,751 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 [2020-11-29 18:16:23,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2020-11-29 18:16:23,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 989. [2020-11-29 18:16:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2020-11-29 18:16:23,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1392 transitions. [2020-11-29 18:16:23,791 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1392 transitions. Word has length 195 [2020-11-29 18:16:23,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:23,791 INFO L481 AbstractCegarLoop]: Abstraction has 989 states and 1392 transitions. [2020-11-29 18:16:23,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:23,792 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1392 transitions. [2020-11-29 18:16:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-29 18:16:23,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:23,796 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2020-11-29 18:16:23,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 18:16:23,797 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:23,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:23,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1428789822, now seen corresponding path program 1 times [2020-11-29 18:16:23,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:23,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769998685] [2020-11-29 18:16:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-11-29 18:16:23,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769998685] [2020-11-29 18:16:23,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:23,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:23,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924555291] [2020-11-29 18:16:23,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:23,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:23,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:23,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:23,918 INFO L87 Difference]: Start difference. First operand 989 states and 1392 transitions. Second operand 3 states. [2020-11-29 18:16:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:24,268 INFO L93 Difference]: Finished difference Result 2097 states and 2975 transitions. [2020-11-29 18:16:24,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:24,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-11-29 18:16:24,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:24,277 INFO L225 Difference]: With dead ends: 2097 [2020-11-29 18:16:24,277 INFO L226 Difference]: Without dead ends: 1118 [2020-11-29 18:16:24,280 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 [2020-11-29 18:16:24,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-11-29 18:16:24,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1082. [2020-11-29 18:16:24,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-11-29 18:16:24,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1524 transitions. [2020-11-29 18:16:24,320 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1524 transitions. Word has length 195 [2020-11-29 18:16:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:24,321 INFO L481 AbstractCegarLoop]: Abstraction has 1082 states and 1524 transitions. [2020-11-29 18:16:24,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1524 transitions. [2020-11-29 18:16:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-29 18:16:24,326 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:24,326 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2020-11-29 18:16:24,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 18:16:24,327 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:24,327 INFO L82 PathProgramCache]: Analyzing trace with hash -390571940, now seen corresponding path program 1 times [2020-11-29 18:16:24,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:24,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702684673] [2020-11-29 18:16:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-29 18:16:24,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702684673] [2020-11-29 18:16:24,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:24,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:24,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30359260] [2020-11-29 18:16:24,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:24,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:24,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:24,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:24,466 INFO L87 Difference]: Start difference. First operand 1082 states and 1524 transitions. Second operand 3 states. [2020-11-29 18:16:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:24,525 INFO L93 Difference]: Finished difference Result 3169 states and 4471 transitions. [2020-11-29 18:16:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:24,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-11-29 18:16:24,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:24,540 INFO L225 Difference]: With dead ends: 3169 [2020-11-29 18:16:24,541 INFO L226 Difference]: Without dead ends: 2124 [2020-11-29 18:16:24,543 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 [2020-11-29 18:16:24,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2020-11-29 18:16:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2122. [2020-11-29 18:16:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2020-11-29 18:16:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2992 transitions. [2020-11-29 18:16:24,616 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2992 transitions. Word has length 225 [2020-11-29 18:16:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:24,617 INFO L481 AbstractCegarLoop]: Abstraction has 2122 states and 2992 transitions. [2020-11-29 18:16:24,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2992 transitions. [2020-11-29 18:16:24,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-29 18:16:24,623 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:24,624 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2020-11-29 18:16:24,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 18:16:24,624 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:24,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:24,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1606725666, now seen corresponding path program 1 times [2020-11-29 18:16:24,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:24,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313108495] [2020-11-29 18:16:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:24,778 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-11-29 18:16:24,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313108495] [2020-11-29 18:16:24,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:24,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:24,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054726587] [2020-11-29 18:16:24,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:24,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:24,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:24,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:24,781 INFO L87 Difference]: Start difference. First operand 2122 states and 2992 transitions. Second operand 3 states. [2020-11-29 18:16:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:25,134 INFO L93 Difference]: Finished difference Result 4513 states and 6403 transitions. [2020-11-29 18:16:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:25,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-11-29 18:16:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:25,153 INFO L225 Difference]: With dead ends: 4513 [2020-11-29 18:16:25,153 INFO L226 Difference]: Without dead ends: 2398 [2020-11-29 18:16:25,160 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 [2020-11-29 18:16:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2020-11-29 18:16:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2332. [2020-11-29 18:16:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-11-29 18:16:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3304 transitions. [2020-11-29 18:16:25,312 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3304 transitions. Word has length 225 [2020-11-29 18:16:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:25,313 INFO L481 AbstractCegarLoop]: Abstraction has 2332 states and 3304 transitions. [2020-11-29 18:16:25,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3304 transitions. [2020-11-29 18:16:25,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-11-29 18:16:25,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:25,323 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:25,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 18:16:25,324 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:25,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1762482343, now seen corresponding path program 1 times [2020-11-29 18:16:25,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:25,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620295665] [2020-11-29 18:16:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2020-11-29 18:16:25,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620295665] [2020-11-29 18:16:25,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:25,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:25,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896375678] [2020-11-29 18:16:25,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:25,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:25,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:25,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:25,484 INFO L87 Difference]: Start difference. First operand 2332 states and 3304 transitions. Second operand 3 states. [2020-11-29 18:16:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:25,866 INFO L93 Difference]: Finished difference Result 4693 states and 6637 transitions. [2020-11-29 18:16:25,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:25,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2020-11-29 18:16:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:25,884 INFO L225 Difference]: With dead ends: 4693 [2020-11-29 18:16:25,884 INFO L226 Difference]: Without dead ends: 2380 [2020-11-29 18:16:25,888 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 [2020-11-29 18:16:25,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2020-11-29 18:16:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2314. [2020-11-29 18:16:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2020-11-29 18:16:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3250 transitions. [2020-11-29 18:16:25,985 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3250 transitions. Word has length 260 [2020-11-29 18:16:25,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:25,986 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 3250 transitions. [2020-11-29 18:16:25,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3250 transitions. [2020-11-29 18:16:25,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-11-29 18:16:25,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:25,995 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:25,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 18:16:25,995 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:25,996 INFO L82 PathProgramCache]: Analyzing trace with hash 357446499, now seen corresponding path program 1 times [2020-11-29 18:16:25,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:25,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186708300] [2020-11-29 18:16:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-11-29 18:16:26,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186708300] [2020-11-29 18:16:26,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:26,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:26,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832182375] [2020-11-29 18:16:26,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:26,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:26,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:26,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:26,307 INFO L87 Difference]: Start difference. First operand 2314 states and 3250 transitions. Second operand 3 states. [2020-11-29 18:16:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:26,421 INFO L93 Difference]: Finished difference Result 6879 states and 9664 transitions. [2020-11-29 18:16:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:26,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-11-29 18:16:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:26,453 INFO L225 Difference]: With dead ends: 6879 [2020-11-29 18:16:26,454 INFO L226 Difference]: Without dead ends: 4602 [2020-11-29 18:16:26,459 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 [2020-11-29 18:16:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2020-11-29 18:16:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4600. [2020-11-29 18:16:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2020-11-29 18:16:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6444 transitions. [2020-11-29 18:16:26,680 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6444 transitions. Word has length 270 [2020-11-29 18:16:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:26,680 INFO L481 AbstractCegarLoop]: Abstraction has 4600 states and 6444 transitions. [2020-11-29 18:16:26,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6444 transitions. [2020-11-29 18:16:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-11-29 18:16:26,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:26,696 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:26,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 18:16:26,696 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:26,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:26,697 INFO L82 PathProgramCache]: Analyzing trace with hash 259987815, now seen corresponding path program 1 times [2020-11-29 18:16:26,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:26,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870365226] [2020-11-29 18:16:26,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-29 18:16:26,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870365226] [2020-11-29 18:16:26,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:26,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:26,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998037267] [2020-11-29 18:16:26,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:26,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:26,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:26,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:26,897 INFO L87 Difference]: Start difference. First operand 4600 states and 6444 transitions. Second operand 3 states. [2020-11-29 18:16:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:27,276 INFO L93 Difference]: Finished difference Result 9242 states and 12935 transitions. [2020-11-29 18:16:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:27,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-11-29 18:16:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:27,311 INFO L225 Difference]: With dead ends: 9242 [2020-11-29 18:16:27,312 INFO L226 Difference]: Without dead ends: 4708 [2020-11-29 18:16:27,320 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 [2020-11-29 18:16:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4708 states. [2020-11-29 18:16:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4708 to 4600. [2020-11-29 18:16:27,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2020-11-29 18:16:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6336 transitions. [2020-11-29 18:16:27,555 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6336 transitions. Word has length 270 [2020-11-29 18:16:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:27,556 INFO L481 AbstractCegarLoop]: Abstraction has 4600 states and 6336 transitions. [2020-11-29 18:16:27,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6336 transitions. [2020-11-29 18:16:27,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-11-29 18:16:27,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:27,573 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:27,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 18:16:27,576 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:27,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1955386571, now seen corresponding path program 1 times [2020-11-29 18:16:27,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:27,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132897670] [2020-11-29 18:16:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-11-29 18:16:27,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132897670] [2020-11-29 18:16:27,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:27,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:27,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099070563] [2020-11-29 18:16:27,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:27,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:27,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:27,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:27,792 INFO L87 Difference]: Start difference. First operand 4600 states and 6336 transitions. Second operand 3 states. [2020-11-29 18:16:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:28,157 INFO L93 Difference]: Finished difference Result 9728 states and 13289 transitions. [2020-11-29 18:16:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:28,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2020-11-29 18:16:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:28,213 INFO L225 Difference]: With dead ends: 9728 [2020-11-29 18:16:28,213 INFO L226 Difference]: Without dead ends: 5194 [2020-11-29 18:16:28,221 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 [2020-11-29 18:16:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2020-11-29 18:16:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 4774. [2020-11-29 18:16:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4774 states. [2020-11-29 18:16:28,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 6570 transitions. [2020-11-29 18:16:28,404 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 6570 transitions. Word has length 297 [2020-11-29 18:16:28,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:28,405 INFO L481 AbstractCegarLoop]: Abstraction has 4774 states and 6570 transitions. [2020-11-29 18:16:28,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:28,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 6570 transitions. [2020-11-29 18:16:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-11-29 18:16:28,418 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:28,419 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:28,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 18:16:28,419 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash -950226577, now seen corresponding path program 1 times [2020-11-29 18:16:28,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:28,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332201802] [2020-11-29 18:16:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-11-29 18:16:28,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332201802] [2020-11-29 18:16:28,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:16:28,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:16:28,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254984954] [2020-11-29 18:16:28,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:28,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:28,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:28,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:16:28,620 INFO L87 Difference]: Start difference. First operand 4774 states and 6570 transitions. Second operand 3 states. [2020-11-29 18:16:28,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:28,948 INFO L93 Difference]: Finished difference Result 9806 states and 13379 transitions. [2020-11-29 18:16:28,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:28,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-11-29 18:16:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:28,963 INFO L225 Difference]: With dead ends: 9806 [2020-11-29 18:16:28,963 INFO L226 Difference]: Without dead ends: 4594 [2020-11-29 18:16:28,971 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 [2020-11-29 18:16:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2020-11-29 18:16:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4576. [2020-11-29 18:16:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4576 states. [2020-11-29 18:16:29,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 6276 transitions. [2020-11-29 18:16:29,183 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 6276 transitions. Word has length 298 [2020-11-29 18:16:29,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:29,183 INFO L481 AbstractCegarLoop]: Abstraction has 4576 states and 6276 transitions. [2020-11-29 18:16:29,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:29,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 6276 transitions. [2020-11-29 18:16:29,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-11-29 18:16:29,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:29,198 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:29,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 18:16:29,198 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:29,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:29,199 INFO L82 PathProgramCache]: Analyzing trace with hash 977282003, now seen corresponding path program 1 times [2020-11-29 18:16:29,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:29,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788459291] [2020-11-29 18:16:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-29 18:16:29,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788459291] [2020-11-29 18:16:29,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843696560] [2020-11-29 18:16:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/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 [2020-11-29 18:16:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:29,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:16:29,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:16:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2020-11-29 18:16:30,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:16:30,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 18:16:30,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157117576] [2020-11-29 18:16:30,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:16:30,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:30,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:16:30,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:16:30,195 INFO L87 Difference]: Start difference. First operand 4576 states and 6276 transitions. Second operand 3 states. [2020-11-29 18:16:30,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:30,305 INFO L93 Difference]: Finished difference Result 6867 states and 9400 transitions. [2020-11-29 18:16:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:16:30,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-11-29 18:16:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:30,318 INFO L225 Difference]: With dead ends: 6867 [2020-11-29 18:16:30,318 INFO L226 Difference]: Without dead ends: 4578 [2020-11-29 18:16:30,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:16:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2020-11-29 18:16:30,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4564. [2020-11-29 18:16:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2020-11-29 18:16:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6240 transitions. [2020-11-29 18:16:30,503 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6240 transitions. Word has length 308 [2020-11-29 18:16:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:30,504 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 6240 transitions. [2020-11-29 18:16:30,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:16:30,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6240 transitions. [2020-11-29 18:16:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-11-29 18:16:30,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:30,521 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1] [2020-11-29 18:16:30,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-29 18:16:30,747 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:30,748 INFO L82 PathProgramCache]: Analyzing trace with hash -828156331, now seen corresponding path program 1 times [2020-11-29 18:16:30,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:30,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243148995] [2020-11-29 18:16:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-29 18:16:31,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243148995] [2020-11-29 18:16:31,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076923420] [2020-11-29 18:16:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/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 [2020-11-29 18:16:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:31,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:16:31,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:16:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-29 18:16:31,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:16:31,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 18:16:31,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354705393] [2020-11-29 18:16:31,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:16:31,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:31,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:16:31,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:16:31,508 INFO L87 Difference]: Start difference. First operand 4564 states and 6240 transitions. Second operand 4 states. [2020-11-29 18:16:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:32,137 INFO L93 Difference]: Finished difference Result 8076 states and 11149 transitions. [2020-11-29 18:16:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:16:32,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-11-29 18:16:32,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:32,152 INFO L225 Difference]: With dead ends: 8076 [2020-11-29 18:16:32,152 INFO L226 Difference]: Without dead ends: 5679 [2020-11-29 18:16:32,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:16:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2020-11-29 18:16:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 4758. [2020-11-29 18:16:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4758 states. [2020-11-29 18:16:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6530 transitions. [2020-11-29 18:16:32,341 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6530 transitions. Word has length 308 [2020-11-29 18:16:32,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:32,342 INFO L481 AbstractCegarLoop]: Abstraction has 4758 states and 6530 transitions. [2020-11-29 18:16:32,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:16:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6530 transitions. [2020-11-29 18:16:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-11-29 18:16:32,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:32,353 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-11-29 18:16:32,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:16:32,567 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:32,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:32,568 INFO L82 PathProgramCache]: Analyzing trace with hash 105807153, now seen corresponding path program 1 times [2020-11-29 18:16:32,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:32,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608887910] [2020-11-29 18:16:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-29 18:16:32,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608887910] [2020-11-29 18:16:32,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898319170] [2020-11-29 18:16:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/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 [2020-11-29 18:16:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:16:33,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:16:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-29 18:16:33,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:16:33,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 18:16:33,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836238863] [2020-11-29 18:16:33,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:16:33,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:33,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:16:33,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:16:33,193 INFO L87 Difference]: Start difference. First operand 4758 states and 6530 transitions. Second operand 4 states. [2020-11-29 18:16:33,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:33,656 INFO L93 Difference]: Finished difference Result 6043 states and 8330 transitions. [2020-11-29 18:16:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:16:33,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2020-11-29 18:16:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:33,663 INFO L225 Difference]: With dead ends: 6043 [2020-11-29 18:16:33,663 INFO L226 Difference]: Without dead ends: 2460 [2020-11-29 18:16:33,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:16:33,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2020-11-29 18:16:33,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2460. [2020-11-29 18:16:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-11-29 18:16:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3389 transitions. [2020-11-29 18:16:33,749 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3389 transitions. Word has length 309 [2020-11-29 18:16:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:33,749 INFO L481 AbstractCegarLoop]: Abstraction has 2460 states and 3389 transitions. [2020-11-29 18:16:33,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:16:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3389 transitions. [2020-11-29 18:16:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-11-29 18:16:33,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:16:33,756 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:16:33,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-29 18:16:33,971 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:16:33,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:16:33,971 INFO L82 PathProgramCache]: Analyzing trace with hash 2136036892, now seen corresponding path program 1 times [2020-11-29 18:16:33,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:16:33,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16729787] [2020-11-29 18:16:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:16:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-11-29 18:16:34,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16729787] [2020-11-29 18:16:34,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785927985] [2020-11-29 18:16:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/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 [2020-11-29 18:16:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:16:34,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:16:34,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:16:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-11-29 18:16:34,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:16:34,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 18:16:34,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102287358] [2020-11-29 18:16:34,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:16:34,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:16:34,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:16:34,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:16:34,565 INFO L87 Difference]: Start difference. First operand 2460 states and 3389 transitions. Second operand 4 states. [2020-11-29 18:16:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:16:34,913 INFO L93 Difference]: Finished difference Result 3515 states and 4790 transitions. [2020-11-29 18:16:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:16:34,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2020-11-29 18:16:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:16:34,914 INFO L225 Difference]: With dead ends: 3515 [2020-11-29 18:16:34,915 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:16:34,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:16:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:16:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:16:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:16:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:16:34,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 334 [2020-11-29 18:16:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:16:34,920 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:16:34,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:16:34,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:16:34,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:16:35,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:16:35,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:16:35,590 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 61 [2020-11-29 18:16:35,754 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 13 [2020-11-29 18:16:35,928 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2020-11-29 18:16:36,277 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 10 [2020-11-29 18:16:36,660 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2020-11-29 18:16:36,891 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 9 [2020-11-29 18:16:37,419 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-11-29 18:16:37,480 INFO L274 CegarLoopResult]: For program point L465(lines 465 471) no Hoare annotation was computed. [2020-11-29 18:16:37,481 INFO L277 CegarLoopResult]: At program point L201(lines 200 541) the Hoare annotation is: true [2020-11-29 18:16:37,481 INFO L270 CegarLoopResult]: At program point L135(lines 131 564) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-29 18:16:37,481 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-11-29 18:16:37,481 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 18:16:37,481 INFO L274 CegarLoopResult]: For program point L235(lines 235 240) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L277 CegarLoopResult]: At program point L632(lines 624 634) the Hoare annotation is: true [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L302(lines 302 306) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L170(lines 170 551) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L137(lines 137 562) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L104(lines 104 573) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-11-29 18:16:37,482 INFO L274 CegarLoopResult]: For program point L435-2(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,483 INFO L277 CegarLoopResult]: At program point L204(lines 203 540) the Hoare annotation is: true [2020-11-29 18:16:37,483 INFO L270 CegarLoopResult]: At program point L171(lines 167 552) 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)) [2020-11-29 18:16:37,483 INFO L270 CegarLoopResult]: At program point L105(lines 104 573) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0))) [2020-11-29 18:16:37,483 INFO L274 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2020-11-29 18:16:37,483 INFO L274 CegarLoopResult]: For program point L404(lines 404 409) no Hoare annotation was computed. [2020-11-29 18:16:37,484 INFO L274 CegarLoopResult]: For program point L404-2(lines 404 409) no Hoare annotation was computed. [2020-11-29 18:16:37,484 INFO L274 CegarLoopResult]: For program point L173(lines 173 550) no Hoare annotation was computed. [2020-11-29 18:16:37,484 INFO L274 CegarLoopResult]: For program point L140(lines 140 561) no Hoare annotation was computed. [2020-11-29 18:16:37,484 INFO L274 CegarLoopResult]: For program point L107(lines 107 572) no Hoare annotation was computed. [2020-11-29 18:16:37,484 INFO L270 CegarLoopResult]: At program point L141(lines 137 562) 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)) [2020-11-29 18:16:37,484 INFO L270 CegarLoopResult]: At program point L538(lines 101 604) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (<= ULTIMATE.start_ssl3_connect_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse0 (not .cse5) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse1 .cse2 .cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5) (and .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)))) [2020-11-29 18:16:37,485 INFO L274 CegarLoopResult]: For program point L76(lines 76 84) no Hoare annotation was computed. [2020-11-29 18:16:37,485 INFO L277 CegarLoopResult]: At program point L605(lines 100 606) the Hoare annotation is: true [2020-11-29 18:16:37,485 INFO L274 CegarLoopResult]: For program point L176(lines 176 549) no Hoare annotation was computed. [2020-11-29 18:16:37,485 INFO L274 CegarLoopResult]: For program point L143(lines 143 560) no Hoare annotation was computed. [2020-11-29 18:16:37,485 INFO L274 CegarLoopResult]: For program point L110(lines 110 571) no Hoare annotation was computed. [2020-11-29 18:16:37,485 INFO L274 CegarLoopResult]: For program point L375(lines 375 379) no Hoare annotation was computed. [2020-11-29 18:16:37,485 INFO L274 CegarLoopResult]: For program point L375-2(lines 375 379) no Hoare annotation was computed. [2020-11-29 18:16:37,486 INFO L270 CegarLoopResult]: At program point L210(lines 107 572) the Hoare annotation is: (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0))) [2020-11-29 18:16:37,486 INFO L270 CegarLoopResult]: At program point L177(lines 173 550) 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)) [2020-11-29 18:16:37,486 INFO L274 CegarLoopResult]: For program point L574(lines 574 602) no Hoare annotation was computed. [2020-11-29 18:16:37,486 INFO L274 CegarLoopResult]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-11-29 18:16:37,486 INFO L274 CegarLoopResult]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2020-11-29 18:16:37,486 INFO L274 CegarLoopResult]: For program point L575(lines 575 599) no Hoare annotation was computed. [2020-11-29 18:16:37,486 INFO L274 CegarLoopResult]: For program point L509-1(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,488 INFO L274 CegarLoopResult]: For program point L344(lines 344 349) no Hoare annotation was computed. [2020-11-29 18:16:37,489 INFO L274 CegarLoopResult]: For program point L278(lines 278 282) no Hoare annotation was computed. [2020-11-29 18:16:37,489 INFO L274 CegarLoopResult]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2020-11-29 18:16:37,489 INFO L274 CegarLoopResult]: For program point L179(lines 179 548) no Hoare annotation was computed. [2020-11-29 18:16:37,489 INFO L274 CegarLoopResult]: For program point L146(lines 146 559) no Hoare annotation was computed. [2020-11-29 18:16:37,489 INFO L274 CegarLoopResult]: For program point L113(lines 113 570) no Hoare annotation was computed. [2020-11-29 18:16:37,490 INFO L274 CegarLoopResult]: For program point L609(lines 609 613) no Hoare annotation was computed. [2020-11-29 18:16:37,490 INFO L274 CegarLoopResult]: For program point L576(lines 576 585) no Hoare annotation was computed. [2020-11-29 18:16:37,490 INFO L274 CegarLoopResult]: For program point L609-2(lines 609 613) no Hoare annotation was computed. [2020-11-29 18:16:37,490 INFO L274 CegarLoopResult]: For program point L576-2(lines 575 597) no Hoare annotation was computed. [2020-11-29 18:16:37,491 INFO L270 CegarLoopResult]: At program point L147(lines 143 560) 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)) [2020-11-29 18:16:37,491 INFO L274 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-11-29 18:16:37,491 INFO L274 CegarLoopResult]: For program point L446(lines 446 451) no Hoare annotation was computed. [2020-11-29 18:16:37,491 INFO L274 CegarLoopResult]: For program point L215(lines 215 219) no Hoare annotation was computed. [2020-11-29 18:16:37,491 INFO L274 CegarLoopResult]: For program point L182(lines 182 547) no Hoare annotation was computed. [2020-11-29 18:16:37,492 INFO L274 CegarLoopResult]: For program point L149(lines 149 558) no Hoare annotation was computed. [2020-11-29 18:16:37,492 INFO L274 CegarLoopResult]: For program point L215-2(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,492 INFO L274 CegarLoopResult]: For program point L116(lines 116 569) no Hoare annotation was computed. [2020-11-29 18:16:37,492 INFO L274 CegarLoopResult]: For program point L480(lines 480 484) no Hoare annotation was computed. [2020-11-29 18:16:37,492 INFO L274 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-11-29 18:16:37,492 INFO L274 CegarLoopResult]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2020-11-29 18:16:37,493 INFO L270 CegarLoopResult]: At program point L183(lines 179 548) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2020-11-29 18:16:37,493 INFO L274 CegarLoopResult]: For program point L514-1(lines 514 518) no Hoare annotation was computed. [2020-11-29 18:16:37,493 INFO L274 CegarLoopResult]: For program point L415(lines 415 419) no Hoare annotation was computed. [2020-11-29 18:16:37,493 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:16:37,494 INFO L274 CegarLoopResult]: For program point L251(lines 251 256) no Hoare annotation was computed. [2020-11-29 18:16:37,494 INFO L274 CegarLoopResult]: For program point L185(lines 185 546) no Hoare annotation was computed. [2020-11-29 18:16:37,494 INFO L274 CegarLoopResult]: For program point L152(lines 152 557) no Hoare annotation was computed. [2020-11-29 18:16:37,494 INFO L274 CegarLoopResult]: For program point L119(lines 119 568) no Hoare annotation was computed. [2020-11-29 18:16:37,494 INFO L274 CegarLoopResult]: For program point L86(lines 86 94) no Hoare annotation was computed. [2020-11-29 18:16:37,494 INFO L274 CegarLoopResult]: For program point L86-1(lines 68 622) no Hoare annotation was computed. [2020-11-29 18:16:37,495 INFO L270 CegarLoopResult]: At program point L153(lines 149 558) 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)) [2020-11-29 18:16:37,495 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-29 18:16:37,495 INFO L274 CegarLoopResult]: For program point L485(lines 485 489) no Hoare annotation was computed. [2020-11-29 18:16:37,495 INFO L274 CegarLoopResult]: For program point L485-2(lines 485 489) no Hoare annotation was computed. [2020-11-29 18:16:37,496 INFO L274 CegarLoopResult]: For program point L287(lines 287 295) no Hoare annotation was computed. [2020-11-29 18:16:37,496 INFO L274 CegarLoopResult]: For program point L188(lines 188 545) no Hoare annotation was computed. [2020-11-29 18:16:37,496 INFO L274 CegarLoopResult]: For program point L155(lines 155 556) no Hoare annotation was computed. [2020-11-29 18:16:37,496 INFO L274 CegarLoopResult]: For program point L122(lines 122 567) no Hoare annotation was computed. [2020-11-29 18:16:37,496 INFO L274 CegarLoopResult]: For program point L387(lines 387 391) no Hoare annotation was computed. [2020-11-29 18:16:37,497 INFO L274 CegarLoopResult]: For program point L354(lines 354 358) no Hoare annotation was computed. [2020-11-29 18:16:37,497 INFO L270 CegarLoopResult]: At program point L189(lines 185 546) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (and (not (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse0 .cse1))) [2020-11-29 18:16:37,497 INFO L270 CegarLoopResult]: At program point L123(lines 119 568) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0 .cse1))) [2020-11-29 18:16:37,498 INFO L270 CegarLoopResult]: At program point L355(lines 68 622) the Hoare annotation is: false [2020-11-29 18:16:37,498 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:16:37,498 INFO L277 CegarLoopResult]: At program point L620(lines 68 622) the Hoare annotation is: true [2020-11-29 18:16:37,498 INFO L274 CegarLoopResult]: For program point L587(lines 587 593) no Hoare annotation was computed. [2020-11-29 18:16:37,499 INFO L274 CegarLoopResult]: For program point L521(lines 521 525) no Hoare annotation was computed. [2020-11-29 18:16:37,501 INFO L274 CegarLoopResult]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2020-11-29 18:16:37,501 INFO L274 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-11-29 18:16:37,501 INFO L274 CegarLoopResult]: For program point L290-2(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,501 INFO L274 CegarLoopResult]: For program point L191(lines 191 544) no Hoare annotation was computed. [2020-11-29 18:16:37,502 INFO L274 CegarLoopResult]: For program point L158(lines 158 555) no Hoare annotation was computed. [2020-11-29 18:16:37,502 INFO L274 CegarLoopResult]: For program point L125(lines 125 566) no Hoare annotation was computed. [2020-11-29 18:16:37,502 INFO L277 CegarLoopResult]: At program point L621(lines 10 623) the Hoare annotation is: true [2020-11-29 18:16:37,502 INFO L274 CegarLoopResult]: For program point L456(lines 456 460) no Hoare annotation was computed. [2020-11-29 18:16:37,502 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:16:37,503 INFO L274 CegarLoopResult]: For program point L359(lines 359 363) no Hoare annotation was computed. [2020-11-29 18:16:37,503 INFO L274 CegarLoopResult]: For program point L227(lines 227 244) no Hoare annotation was computed. [2020-11-29 18:16:37,503 INFO L274 CegarLoopResult]: For program point L194(lines 194 543) no Hoare annotation was computed. [2020-11-29 18:16:37,504 INFO L274 CegarLoopResult]: For program point L161(lines 161 554) no Hoare annotation was computed. [2020-11-29 18:16:37,504 INFO L274 CegarLoopResult]: For program point L227-2(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,504 INFO L274 CegarLoopResult]: For program point L128(lines 128 565) no Hoare annotation was computed. [2020-11-29 18:16:37,504 INFO L270 CegarLoopResult]: At program point L195(lines 191 544) the Hoare annotation is: (or (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) [2020-11-29 18:16:37,505 INFO L270 CegarLoopResult]: At program point L129(lines 125 566) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2020-11-29 18:16:37,505 INFO L274 CegarLoopResult]: For program point L493-1(lines 493 505) no Hoare annotation was computed. [2020-11-29 18:16:37,505 INFO L274 CegarLoopResult]: For program point L427(lines 427 431) no Hoare annotation was computed. [2020-11-29 18:16:37,505 INFO L274 CegarLoopResult]: For program point L229(lines 229 234) no Hoare annotation was computed. [2020-11-29 18:16:37,505 INFO L274 CegarLoopResult]: For program point L197(lines 197 542) no Hoare annotation was computed. [2020-11-29 18:16:37,505 INFO L274 CegarLoopResult]: For program point L164(lines 164 553) no Hoare annotation was computed. [2020-11-29 18:16:37,506 INFO L274 CegarLoopResult]: For program point L131(lines 131 564) no Hoare annotation was computed. [2020-11-29 18:16:37,506 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:16:37,506 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:16:37,506 INFO L274 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-11-29 18:16:37,507 INFO L270 CegarLoopResult]: At program point L198(lines 197 542) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3) (and .cse0 (not .cse3) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-29 18:16:37,507 INFO L270 CegarLoopResult]: At program point L165(lines 155 556) 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)) [2020-11-29 18:16:37,507 INFO L274 CegarLoopResult]: For program point L496(lines 496 501) no Hoare annotation was computed. [2020-11-29 18:16:37,507 INFO L274 CegarLoopResult]: For program point L463(lines 463 474) no Hoare annotation was computed. [2020-11-29 18:16:37,507 INFO L274 CegarLoopResult]: For program point L463-1(lines 463 474) no Hoare annotation was computed. [2020-11-29 18:16:37,507 INFO L274 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-11-29 18:16:37,508 INFO L274 CegarLoopResult]: For program point L265-2(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,508 INFO L274 CegarLoopResult]: For program point L398(lines 398 402) no Hoare annotation was computed. [2020-11-29 18:16:37,508 INFO L274 CegarLoopResult]: For program point L332(lines 332 336) no Hoare annotation was computed. [2020-11-29 18:16:37,508 INFO L274 CegarLoopResult]: For program point L332-2(lines 205 537) no Hoare annotation was computed. [2020-11-29 18:16:37,508 INFO L274 CegarLoopResult]: For program point L200(lines 200 541) no Hoare annotation was computed. [2020-11-29 18:16:37,509 INFO L274 CegarLoopResult]: For program point L167(lines 167 552) no Hoare annotation was computed. [2020-11-29 18:16:37,509 INFO L274 CegarLoopResult]: For program point L134(lines 134 563) no Hoare annotation was computed. [2020-11-29 18:16:37,509 INFO L274 CegarLoopResult]: For program point L101-1(lines 68 622) no Hoare annotation was computed. [2020-11-29 18:16:37,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:16:37 BoogieIcfgContainer [2020-11-29 18:16:37,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:16:37,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:16:37,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:16:37,562 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:16:37,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:18" (3/4) ... [2020-11-29 18:16:37,567 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:16:37,603 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 18:16:37,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:16:37,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:16:37,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:16:37,792 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_83507943-5eaf-4338-91c7-58ac2b290460/bin/uautomizer/witness.graphml [2020-11-29 18:16:37,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:16:37,794 INFO L168 Benchmark]: Toolchain (without parser) took 21377.30 ms. Allocated memory was 115.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 87.6 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 160.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,794 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 42.5 MB in the beginning and 42.4 MB in the end (delta: 40.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:16:37,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.29 ms. Allocated memory is still 115.3 MB. Free memory was 87.3 MB in the beginning and 89.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.34 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 86.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,796 INFO L168 Benchmark]: Boogie Preprocessor took 88.98 ms. Allocated memory is still 115.3 MB. Free memory was 86.6 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,797 INFO L168 Benchmark]: RCFGBuilder took 1264.15 ms. Allocated memory is still 115.3 MB. Free memory was 84.1 MB in the beginning and 84.9 MB in the end (delta: -782.2 kB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,797 INFO L168 Benchmark]: TraceAbstraction took 19160.17 ms. Allocated memory was 115.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 84.1 MB in the beginning and 1.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 412.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,798 INFO L168 Benchmark]: Witness Printer took 232.66 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:16:37,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 42.5 MB in the beginning and 42.4 MB in the end (delta: 40.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 519.29 ms. Allocated memory is still 115.3 MB. Free memory was 87.3 MB in the beginning and 89.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.34 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 86.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.98 ms. Allocated memory is still 115.3 MB. Free memory was 86.6 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1264.15 ms. Allocated memory is still 115.3 MB. Free memory was 84.1 MB in the beginning and 84.9 MB in the end (delta: -782.2 kB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19160.17 ms. Allocated memory was 115.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 84.1 MB in the beginning and 1.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 412.5 MB. Max. memory is 16.1 GB. * Witness Printer took 232.66 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 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: 155]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4480 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) || ((blastFlag == 0 && s__state <= 4432) && 4352 <= s__state) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || ((s__state <= 4352 && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (blastFlag == 2 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: blastFlag == 2 || (s__state <= 4352 && blastFlag == 0) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && 4432 <= s__state) && blastFlag <= 4) || ((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4448 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (blastFlag == 2 && 12292 == s__state) || (blastFlag == 0 && 12292 == s__state) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((s__state <= 4432 && blastFlag == 1) && 4352 <= s__state) || ((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__hit == 0) || (blastFlag == 2 && 4560 <= s__state) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((blastFlag == 2 || (((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || s__state <= 3) || ((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4)) || (blastFlag == 1 && s__state == 4384)) || ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || (((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (blastFlag <= 4 && s__state == 4416)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4464 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.6s, OverallIterations: 24, TraceHistogramMax: 15, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4609 SDtfs, 1688 SDslu, 2649 SDs, 0 SdLazy, 2114 SolverSat, 533 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1337 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 1797 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 211 NumberOfFragments, 332 HoareAnnotationTreeSize, 23 FomulaSimplifications, 36166 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 23 FomulaSimplificationsInter, 5216 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 5691 NumberOfCodeBlocks, 5691 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 5663 ConstructedInterpolants, 0 QuantifiedInterpolants, 2088301 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2495 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 17050/17120 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...