./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be --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 3b0a25bcf9d7b9f9ae78e93e032586591c4401ff73527e9d61e66c096f2e8695 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:04:28,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:04:28,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:04:28,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:04:28,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:04:28,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:04:28,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:04:28,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:04:28,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:04:28,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:04:28,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:04:28,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:04:28,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:04:28,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:04:28,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:04:28,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:04:28,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:04:28,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:04:28,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:04:28,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:04:28,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:04:28,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:04:28,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:04:28,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:04:28,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:04:28,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:04:28,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:04:28,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:04:28,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:04:28,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:04:28,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:04:28,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:04:28,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:04:28,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:04:28,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:04:28,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:04:28,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:04:28,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:04:28,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:04:28,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:04:28,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:04:28,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:04:28,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:04:28,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:04:28,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:04:28,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:04:28,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:04:28,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:04:28,281 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:04:28,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:04:28,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:04:28,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:04:28,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:04:28,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:04:28,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:04:28,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:04:28,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:04:28,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:04:28,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:04:28,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:04:28,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:04:28,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:04:28,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:04:28,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:04:28,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:04:28,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:04:28,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:04:28,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:04:28,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:04:28,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:04:28,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:04:28,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:04:28,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:04:28,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:04:28,289 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_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b0a25bcf9d7b9f9ae78e93e032586591c4401ff73527e9d61e66c096f2e8695 [2021-10-21 20:04:28,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:04:28,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:04:28,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:04:28,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:04:28,611 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:04:28,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c [2021-10-21 20:04:28,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/data/c8c50caec/38d7fbd1b4b54c0892fe05dbab21cbd5/FLAGbc77e5fa9 [2021-10-21 20:04:29,214 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:04:29,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c [2021-10-21 20:04:29,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/data/c8c50caec/38d7fbd1b4b54c0892fe05dbab21cbd5/FLAGbc77e5fa9 [2021-10-21 20:04:29,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/data/c8c50caec/38d7fbd1b4b54c0892fe05dbab21cbd5 [2021-10-21 20:04:29,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:04:29,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:04:29,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:04:29,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:04:29,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:04:29,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:29,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531f38f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29, skipping insertion in model container [2021-10-21 20:04:29,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:29,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:04:29,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:04:29,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c[42850,42863] [2021-10-21 20:04:29,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:04:29,897 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:04:29,957 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c[42850,42863] [2021-10-21 20:04:29,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:04:29,975 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:04:29,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29 WrapperNode [2021-10-21 20:04:29,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:04:29,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:04:29,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:04:29,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:04:30,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:04:30,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:04:30,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:04:30,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:04:30,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:04:30,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:04:30,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:04:30,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:04:30,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (1/1) ... [2021-10-21 20:04:30,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:04:30,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:30,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:04:30,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:04:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:04:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:04:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:04:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:04:30,359 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:04:30,985 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-21 20:04:30,986 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-21 20:04:30,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:04:31,000 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 20:04:31,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:04:31 BoogieIcfgContainer [2021-10-21 20:04:31,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:04:31,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:04:31,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:04:31,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:04:31,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:04:29" (1/3) ... [2021-10-21 20:04:31,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7286d631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:04:31, skipping insertion in model container [2021-10-21 20:04:31,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:04:29" (2/3) ... [2021-10-21 20:04:31,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7286d631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:04:31, skipping insertion in model container [2021-10-21 20:04:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:04:31" (3/3) ... [2021-10-21 20:04:31,018 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-1.c [2021-10-21 20:04:31,024 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:04:31,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:04:31,072 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:04:31,079 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:04:31,079 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:04:31,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 139 states have (on average 1.7266187050359711) internal successors, (240), 140 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:31,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-21 20:04:31,108 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:31,108 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:31,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:31,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:31,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1632005994, now seen corresponding path program 1 times [2021-10-21 20:04:31,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:31,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541840289] [2021-10-21 20:04:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:31,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:31,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:31,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541840289] [2021-10-21 20:04:31,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541840289] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:31,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:31,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:31,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298734285] [2021-10-21 20:04:31,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:31,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:31,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:31,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:31,536 INFO L87 Difference]: Start difference. First operand has 141 states, 139 states have (on average 1.7266187050359711) internal successors, (240), 140 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:31,885 INFO L93 Difference]: Finished difference Result 328 states and 564 transitions. [2021-10-21 20:04:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:31,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-21 20:04:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:31,905 INFO L225 Difference]: With dead ends: 328 [2021-10-21 20:04:31,905 INFO L226 Difference]: Without dead ends: 175 [2021-10-21 20:04:31,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:31,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-10-21 20:04:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2021-10-21 20:04:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.6272189349112427) internal successors, (275), 169 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 275 transitions. [2021-10-21 20:04:31,991 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 275 transitions. Word has length 44 [2021-10-21 20:04:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:31,992 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 275 transitions. [2021-10-21 20:04:31,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 275 transitions. [2021-10-21 20:04:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-21 20:04:31,996 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:31,996 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:31,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:04:31,997 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:31,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:31,997 INFO L82 PathProgramCache]: Analyzing trace with hash -954576436, now seen corresponding path program 1 times [2021-10-21 20:04:31,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:31,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626357851] [2021-10-21 20:04:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:31,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:32,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:32,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626357851] [2021-10-21 20:04:32,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626357851] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:32,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:32,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:32,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103376074] [2021-10-21 20:04:32,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:32,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:32,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:32,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,097 INFO L87 Difference]: Start difference. First operand 170 states and 275 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:32,272 INFO L93 Difference]: Finished difference Result 380 states and 624 transitions. [2021-10-21 20:04:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:32,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-21 20:04:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:32,275 INFO L225 Difference]: With dead ends: 380 [2021-10-21 20:04:32,275 INFO L226 Difference]: Without dead ends: 216 [2021-10-21 20:04:32,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-10-21 20:04:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2021-10-21 20:04:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.6761904761904762) internal successors, (352), 210 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 352 transitions. [2021-10-21 20:04:32,292 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 352 transitions. Word has length 45 [2021-10-21 20:04:32,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:32,293 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 352 transitions. [2021-10-21 20:04:32,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,293 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 352 transitions. [2021-10-21 20:04:32,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-21 20:04:32,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:32,301 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-21 20:04:32,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:04:32,302 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:32,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:32,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2071968837, now seen corresponding path program 1 times [2021-10-21 20:04:32,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:32,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241227923] [2021-10-21 20:04:32,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:32,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:32,425 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:32,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:32,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241227923] [2021-10-21 20:04:32,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241227923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:32,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:32,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:32,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655746844] [2021-10-21 20:04:32,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:32,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,429 INFO L87 Difference]: Start difference. First operand 211 states and 352 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:32,584 INFO L93 Difference]: Finished difference Result 445 states and 750 transitions. [2021-10-21 20:04:32,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:32,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-10-21 20:04:32,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:32,588 INFO L225 Difference]: With dead ends: 445 [2021-10-21 20:04:32,588 INFO L226 Difference]: Without dead ends: 242 [2021-10-21 20:04:32,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-21 20:04:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-21 20:04:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.6929460580912863) internal successors, (408), 241 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 408 transitions. [2021-10-21 20:04:32,618 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 408 transitions. Word has length 72 [2021-10-21 20:04:32,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:32,619 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 408 transitions. [2021-10-21 20:04:32,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,619 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 408 transitions. [2021-10-21 20:04:32,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-21 20:04:32,624 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:32,624 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:32,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:04:32,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:32,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:32,625 INFO L82 PathProgramCache]: Analyzing trace with hash -947039589, now seen corresponding path program 1 times [2021-10-21 20:04:32,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:32,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644484226] [2021-10-21 20:04:32,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:32,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:04:32,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:32,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644484226] [2021-10-21 20:04:32,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644484226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:32,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:32,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:32,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79143675] [2021-10-21 20:04:32,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:32,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:32,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:32,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,681 INFO L87 Difference]: Start difference. First operand 242 states and 408 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:32,818 INFO L93 Difference]: Finished difference Result 493 states and 832 transitions. [2021-10-21 20:04:32,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:32,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-10-21 20:04:32,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:32,821 INFO L225 Difference]: With dead ends: 493 [2021-10-21 20:04:32,821 INFO L226 Difference]: Without dead ends: 259 [2021-10-21 20:04:32,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-10-21 20:04:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2021-10-21 20:04:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.68359375) internal successors, (431), 256 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 431 transitions. [2021-10-21 20:04:32,836 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 431 transitions. Word has length 84 [2021-10-21 20:04:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:32,837 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 431 transitions. [2021-10-21 20:04:32,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:32,837 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 431 transitions. [2021-10-21 20:04:32,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-21 20:04:32,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:32,840 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:32,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:04:32,840 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:32,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:32,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1168944985, now seen corresponding path program 1 times [2021-10-21 20:04:32,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:32,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346069690] [2021-10-21 20:04:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:32,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:32,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:32,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346069690] [2021-10-21 20:04:32,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346069690] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:32,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:32,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:32,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334018399] [2021-10-21 20:04:32,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:32,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:32,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:32,937 INFO L87 Difference]: Start difference. First operand 257 states and 431 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:33,111 INFO L93 Difference]: Finished difference Result 552 states and 931 transitions. [2021-10-21 20:04:33,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:33,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-10-21 20:04:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:33,115 INFO L225 Difference]: With dead ends: 552 [2021-10-21 20:04:33,115 INFO L226 Difference]: Without dead ends: 303 [2021-10-21 20:04:33,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-10-21 20:04:33,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2021-10-21 20:04:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6946308724832215) internal successors, (505), 298 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 505 transitions. [2021-10-21 20:04:33,130 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 505 transitions. Word has length 84 [2021-10-21 20:04:33,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:33,132 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 505 transitions. [2021-10-21 20:04:33,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,132 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 505 transitions. [2021-10-21 20:04:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-21 20:04:33,136 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:33,136 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 20:04:33,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:04:33,137 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:33,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:33,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2129818626, now seen corresponding path program 1 times [2021-10-21 20:04:33,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:33,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784310941] [2021-10-21 20:04:33,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:33,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:04:33,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:33,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784310941] [2021-10-21 20:04:33,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784310941] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:33,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:33,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:33,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680994819] [2021-10-21 20:04:33,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:33,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:33,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:33,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,238 INFO L87 Difference]: Start difference. First operand 299 states and 505 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:33,341 INFO L93 Difference]: Finished difference Result 592 states and 1000 transitions. [2021-10-21 20:04:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:33,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-10-21 20:04:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:33,349 INFO L225 Difference]: With dead ends: 592 [2021-10-21 20:04:33,350 INFO L226 Difference]: Without dead ends: 301 [2021-10-21 20:04:33,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-21 20:04:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2021-10-21 20:04:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6812080536912752) internal successors, (501), 298 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 501 transitions. [2021-10-21 20:04:33,363 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 501 transitions. Word has length 85 [2021-10-21 20:04:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:33,365 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 501 transitions. [2021-10-21 20:04:33,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,366 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 501 transitions. [2021-10-21 20:04:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-21 20:04:33,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:33,367 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:33,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 20:04:33,368 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:33,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:33,369 INFO L82 PathProgramCache]: Analyzing trace with hash -122958423, now seen corresponding path program 1 times [2021-10-21 20:04:33,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:33,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025151915] [2021-10-21 20:04:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:33,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:33,450 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:04:33,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:33,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025151915] [2021-10-21 20:04:33,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025151915] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:33,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:33,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:33,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580022872] [2021-10-21 20:04:33,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:33,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,454 INFO L87 Difference]: Start difference. First operand 299 states and 501 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:33,598 INFO L93 Difference]: Finished difference Result 594 states and 995 transitions. [2021-10-21 20:04:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:33,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-10-21 20:04:33,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:33,602 INFO L225 Difference]: With dead ends: 594 [2021-10-21 20:04:33,602 INFO L226 Difference]: Without dead ends: 301 [2021-10-21 20:04:33,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-21 20:04:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2021-10-21 20:04:33,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.6756756756756757) internal successors, (496), 296 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 496 transitions. [2021-10-21 20:04:33,614 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 496 transitions. Word has length 85 [2021-10-21 20:04:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:33,614 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 496 transitions. [2021-10-21 20:04:33,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,615 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 496 transitions. [2021-10-21 20:04:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-21 20:04:33,619 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:33,620 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:33,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 20:04:33,620 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:33,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:33,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1553184093, now seen corresponding path program 1 times [2021-10-21 20:04:33,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:33,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015377629] [2021-10-21 20:04:33,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:33,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-21 20:04:33,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:33,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015377629] [2021-10-21 20:04:33,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015377629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:33,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:33,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:33,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118649791] [2021-10-21 20:04:33,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:33,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:33,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,694 INFO L87 Difference]: Start difference. First operand 297 states and 496 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:33,784 INFO L93 Difference]: Finished difference Result 595 states and 992 transitions. [2021-10-21 20:04:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:33,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-10-21 20:04:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:33,789 INFO L225 Difference]: With dead ends: 595 [2021-10-21 20:04:33,789 INFO L226 Difference]: Without dead ends: 306 [2021-10-21 20:04:33,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-10-21 20:04:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2021-10-21 20:04:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.6459016393442623) internal successors, (502), 305 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 502 transitions. [2021-10-21 20:04:33,803 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 502 transitions. Word has length 97 [2021-10-21 20:04:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:33,804 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 502 transitions. [2021-10-21 20:04:33,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 502 transitions. [2021-10-21 20:04:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-21 20:04:33,805 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:33,806 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:33,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 20:04:33,806 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:33,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:33,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2083521026, now seen corresponding path program 1 times [2021-10-21 20:04:33,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:33,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985666929] [2021-10-21 20:04:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:33,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:04:33,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:33,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985666929] [2021-10-21 20:04:33,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985666929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:33,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:33,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:33,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552268317] [2021-10-21 20:04:33,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:33,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:33,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:33,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,859 INFO L87 Difference]: Start difference. First operand 306 states and 502 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:33,985 INFO L93 Difference]: Finished difference Result 635 states and 1045 transitions. [2021-10-21 20:04:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:33,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-10-21 20:04:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:33,989 INFO L225 Difference]: With dead ends: 635 [2021-10-21 20:04:33,989 INFO L226 Difference]: Without dead ends: 337 [2021-10-21 20:04:33,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-21 20:04:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2021-10-21 20:04:34,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6437125748502994) internal successors, (549), 334 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 549 transitions. [2021-10-21 20:04:34,005 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 549 transitions. Word has length 98 [2021-10-21 20:04:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:34,006 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 549 transitions. [2021-10-21 20:04:34,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 549 transitions. [2021-10-21 20:04:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-10-21 20:04:34,008 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:34,008 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:34,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 20:04:34,008 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash -102460539, now seen corresponding path program 1 times [2021-10-21 20:04:34,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:34,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990011186] [2021-10-21 20:04:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:34,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:04:34,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:34,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990011186] [2021-10-21 20:04:34,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990011186] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:34,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:34,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:34,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626114379] [2021-10-21 20:04:34,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:34,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:34,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:34,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,059 INFO L87 Difference]: Start difference. First operand 335 states and 549 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:34,181 INFO L93 Difference]: Finished difference Result 664 states and 1088 transitions. [2021-10-21 20:04:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:34,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-10-21 20:04:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:34,184 INFO L225 Difference]: With dead ends: 664 [2021-10-21 20:04:34,184 INFO L226 Difference]: Without dead ends: 337 [2021-10-21 20:04:34,185 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-21 20:04:34,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2021-10-21 20:04:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6317365269461077) internal successors, (545), 334 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 545 transitions. [2021-10-21 20:04:34,201 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 545 transitions. Word has length 99 [2021-10-21 20:04:34,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:34,202 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 545 transitions. [2021-10-21 20:04:34,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,203 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 545 transitions. [2021-10-21 20:04:34,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-21 20:04:34,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:34,204 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:34,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 20:04:34,205 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:34,206 INFO L82 PathProgramCache]: Analyzing trace with hash -651386898, now seen corresponding path program 1 times [2021-10-21 20:04:34,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:34,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727016669] [2021-10-21 20:04:34,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:34,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:04:34,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:34,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727016669] [2021-10-21 20:04:34,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727016669] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:34,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:34,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:34,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357042065] [2021-10-21 20:04:34,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:34,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:34,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:34,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,264 INFO L87 Difference]: Start difference. First operand 335 states and 545 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:34,379 INFO L93 Difference]: Finished difference Result 697 states and 1138 transitions. [2021-10-21 20:04:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:34,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-10-21 20:04:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:34,383 INFO L225 Difference]: With dead ends: 697 [2021-10-21 20:04:34,383 INFO L226 Difference]: Without dead ends: 370 [2021-10-21 20:04:34,384 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-21 20:04:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2021-10-21 20:04:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.626038781163435) internal successors, (587), 361 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 587 transitions. [2021-10-21 20:04:34,397 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 587 transitions. Word has length 100 [2021-10-21 20:04:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:34,398 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 587 transitions. [2021-10-21 20:04:34,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 587 transitions. [2021-10-21 20:04:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-10-21 20:04:34,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:34,400 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:34,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 20:04:34,400 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:34,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:34,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1258189035, now seen corresponding path program 1 times [2021-10-21 20:04:34,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:34,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747155636] [2021-10-21 20:04:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:34,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:04:34,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:34,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747155636] [2021-10-21 20:04:34,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747155636] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:34,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:34,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:34,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879506143] [2021-10-21 20:04:34,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:34,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:34,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:34,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,439 INFO L87 Difference]: Start difference. First operand 362 states and 587 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:34,556 INFO L93 Difference]: Finished difference Result 724 states and 1175 transitions. [2021-10-21 20:04:34,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:34,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-10-21 20:04:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:34,563 INFO L225 Difference]: With dead ends: 724 [2021-10-21 20:04:34,563 INFO L226 Difference]: Without dead ends: 370 [2021-10-21 20:04:34,564 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-21 20:04:34,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2021-10-21 20:04:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.6121883656509695) internal successors, (582), 361 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 582 transitions. [2021-10-21 20:04:34,581 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 582 transitions. Word has length 101 [2021-10-21 20:04:34,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:34,582 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 582 transitions. [2021-10-21 20:04:34,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 582 transitions. [2021-10-21 20:04:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-21 20:04:34,584 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:34,584 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:34,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 20:04:34,584 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:34,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:34,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1027805126, now seen corresponding path program 1 times [2021-10-21 20:04:34,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:34,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031776992] [2021-10-21 20:04:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:34,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-21 20:04:34,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:34,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031776992] [2021-10-21 20:04:34,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031776992] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:34,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:34,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:34,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792549924] [2021-10-21 20:04:34,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:34,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:34,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:34,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,624 INFO L87 Difference]: Start difference. First operand 362 states and 582 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:34,742 INFO L93 Difference]: Finished difference Result 742 states and 1195 transitions. [2021-10-21 20:04:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:34,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-21 20:04:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:34,745 INFO L225 Difference]: With dead ends: 742 [2021-10-21 20:04:34,745 INFO L226 Difference]: Without dead ends: 388 [2021-10-21 20:04:34,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-21 20:04:34,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2021-10-21 20:04:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5994764397905759) internal successors, (611), 382 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 611 transitions. [2021-10-21 20:04:34,760 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 611 transitions. Word has length 105 [2021-10-21 20:04:34,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:34,761 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 611 transitions. [2021-10-21 20:04:34,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,761 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 611 transitions. [2021-10-21 20:04:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-21 20:04:34,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:34,763 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:34,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 20:04:34,763 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:34,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:34,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1570072403, now seen corresponding path program 1 times [2021-10-21 20:04:34,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:34,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513616889] [2021-10-21 20:04:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:34,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-21 20:04:34,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:34,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513616889] [2021-10-21 20:04:34,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513616889] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:34,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:34,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:34,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686679321] [2021-10-21 20:04:34,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:34,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,801 INFO L87 Difference]: Start difference. First operand 383 states and 611 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:34,909 INFO L93 Difference]: Finished difference Result 763 states and 1218 transitions. [2021-10-21 20:04:34,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:34,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-10-21 20:04:34,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:34,912 INFO L225 Difference]: With dead ends: 763 [2021-10-21 20:04:34,912 INFO L226 Difference]: Without dead ends: 388 [2021-10-21 20:04:34,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-21 20:04:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2021-10-21 20:04:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5837696335078535) internal successors, (605), 382 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 605 transitions. [2021-10-21 20:04:34,929 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 605 transitions. Word has length 106 [2021-10-21 20:04:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:34,929 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 605 transitions. [2021-10-21 20:04:34,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 605 transitions. [2021-10-21 20:04:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-10-21 20:04:34,931 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:34,931 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-21 20:04:34,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-21 20:04:34,932 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:34,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1383340250, now seen corresponding path program 1 times [2021-10-21 20:04:34,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:34,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026747531] [2021-10-21 20:04:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:34,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-21 20:04:34,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:34,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026747531] [2021-10-21 20:04:34,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026747531] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:34,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:34,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:34,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920230128] [2021-10-21 20:04:34,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:34,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:34,982 INFO L87 Difference]: Start difference. First operand 383 states and 605 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:35,023 INFO L93 Difference]: Finished difference Result 758 states and 1198 transitions. [2021-10-21 20:04:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:35,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-10-21 20:04:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:35,028 INFO L225 Difference]: With dead ends: 758 [2021-10-21 20:04:35,028 INFO L226 Difference]: Without dead ends: 756 [2021-10-21 20:04:35,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2021-10-21 20:04:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 756. [2021-10-21 20:04:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 755 states have (on average 1.5841059602649006) internal successors, (1196), 755 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1196 transitions. [2021-10-21 20:04:35,060 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1196 transitions. Word has length 121 [2021-10-21 20:04:35,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:35,061 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 1196 transitions. [2021-10-21 20:04:35,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1196 transitions. [2021-10-21 20:04:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-21 20:04:35,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:35,064 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-21 20:04:35,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 20:04:35,064 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:35,065 INFO L82 PathProgramCache]: Analyzing trace with hash 56372730, now seen corresponding path program 1 times [2021-10-21 20:04:35,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:35,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722371907] [2021-10-21 20:04:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:35,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-21 20:04:35,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:35,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722371907] [2021-10-21 20:04:35,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722371907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:35,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:35,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:35,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914557633] [2021-10-21 20:04:35,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:35,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:35,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:35,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,120 INFO L87 Difference]: Start difference. First operand 756 states and 1196 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:35,183 INFO L93 Difference]: Finished difference Result 1872 states and 2964 transitions. [2021-10-21 20:04:35,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:35,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-10-21 20:04:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:35,190 INFO L225 Difference]: With dead ends: 1872 [2021-10-21 20:04:35,190 INFO L226 Difference]: Without dead ends: 1124 [2021-10-21 20:04:35,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2021-10-21 20:04:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1124. [2021-10-21 20:04:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 1.5823686553873553) internal successors, (1777), 1123 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1777 transitions. [2021-10-21 20:04:35,241 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1777 transitions. Word has length 122 [2021-10-21 20:04:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:35,242 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1777 transitions. [2021-10-21 20:04:35,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1777 transitions. [2021-10-21 20:04:35,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-21 20:04:35,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:35,246 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-10-21 20:04:35,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-21 20:04:35,246 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:35,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:35,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1445666744, now seen corresponding path program 1 times [2021-10-21 20:04:35,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:35,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202276852] [2021-10-21 20:04:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:35,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-21 20:04:35,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:35,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202276852] [2021-10-21 20:04:35,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202276852] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:35,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:35,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:35,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149944355] [2021-10-21 20:04:35,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:35,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:35,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:35,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,281 INFO L87 Difference]: Start difference. First operand 1124 states and 1777 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:35,351 INFO L93 Difference]: Finished difference Result 2591 states and 4097 transitions. [2021-10-21 20:04:35,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:35,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-10-21 20:04:35,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:35,360 INFO L225 Difference]: With dead ends: 2591 [2021-10-21 20:04:35,360 INFO L226 Difference]: Without dead ends: 1475 [2021-10-21 20:04:35,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2021-10-21 20:04:35,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2021-10-21 20:04:35,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 1.5793758480325644) internal successors, (2328), 1474 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2328 transitions. [2021-10-21 20:04:35,438 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2328 transitions. Word has length 122 [2021-10-21 20:04:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:35,438 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2328 transitions. [2021-10-21 20:04:35,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2328 transitions. [2021-10-21 20:04:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-10-21 20:04:35,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:35,444 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:35,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-21 20:04:35,444 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:35,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:35,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1566103125, now seen corresponding path program 1 times [2021-10-21 20:04:35,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:35,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598763539] [2021-10-21 20:04:35,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:35,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-10-21 20:04:35,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:35,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598763539] [2021-10-21 20:04:35,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598763539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:35,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:35,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:35,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497929822] [2021-10-21 20:04:35,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:35,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:35,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:35,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,484 INFO L87 Difference]: Start difference. First operand 1475 states and 2328 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:35,674 INFO L93 Difference]: Finished difference Result 2982 states and 4692 transitions. [2021-10-21 20:04:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:35,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2021-10-21 20:04:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:35,683 INFO L225 Difference]: With dead ends: 2982 [2021-10-21 20:04:35,683 INFO L226 Difference]: Without dead ends: 1515 [2021-10-21 20:04:35,686 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2021-10-21 20:04:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1475. [2021-10-21 20:04:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 1.4816824966078697) internal successors, (2184), 1474 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2184 transitions. [2021-10-21 20:04:35,750 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2184 transitions. Word has length 159 [2021-10-21 20:04:35,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:35,751 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2184 transitions. [2021-10-21 20:04:35,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2184 transitions. [2021-10-21 20:04:35,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-10-21 20:04:35,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:35,756 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:35,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 20:04:35,756 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:35,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:35,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1636228969, now seen corresponding path program 1 times [2021-10-21 20:04:35,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:35,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409234798] [2021-10-21 20:04:35,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:35,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-10-21 20:04:35,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:35,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409234798] [2021-10-21 20:04:35,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409234798] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:35,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:35,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:35,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906198850] [2021-10-21 20:04:35,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:35,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:35,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:35,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:35,809 INFO L87 Difference]: Start difference. First operand 1475 states and 2184 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:36,010 INFO L93 Difference]: Finished difference Result 3138 states and 4656 transitions. [2021-10-21 20:04:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2021-10-21 20:04:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:36,020 INFO L225 Difference]: With dead ends: 3138 [2021-10-21 20:04:36,021 INFO L226 Difference]: Without dead ends: 1671 [2021-10-21 20:04:36,022 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-10-21 20:04:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1555. [2021-10-21 20:04:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.444015444015444) internal successors, (2244), 1554 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2244 transitions. [2021-10-21 20:04:36,101 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2244 transitions. Word has length 159 [2021-10-21 20:04:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:36,101 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2244 transitions. [2021-10-21 20:04:36,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2244 transitions. [2021-10-21 20:04:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-10-21 20:04:36,106 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:36,106 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:36,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 20:04:36,107 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:36,107 INFO L82 PathProgramCache]: Analyzing trace with hash 442177989, now seen corresponding path program 1 times [2021-10-21 20:04:36,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:36,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257395038] [2021-10-21 20:04:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:36,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-10-21 20:04:36,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:36,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257395038] [2021-10-21 20:04:36,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257395038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:36,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:36,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:36,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252159537] [2021-10-21 20:04:36,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:36,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:36,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:36,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,159 INFO L87 Difference]: Start difference. First operand 1555 states and 2244 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:36,351 INFO L93 Difference]: Finished difference Result 3158 states and 4542 transitions. [2021-10-21 20:04:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:36,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-10-21 20:04:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:36,364 INFO L225 Difference]: With dead ends: 3158 [2021-10-21 20:04:36,364 INFO L226 Difference]: Without dead ends: 1611 [2021-10-21 20:04:36,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2021-10-21 20:04:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1555. [2021-10-21 20:04:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.404118404118404) internal successors, (2182), 1554 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2182 transitions. [2021-10-21 20:04:36,460 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2182 transitions. Word has length 173 [2021-10-21 20:04:36,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:36,461 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2182 transitions. [2021-10-21 20:04:36,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2182 transitions. [2021-10-21 20:04:36,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-10-21 20:04:36,467 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:36,467 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 20:04:36,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-21 20:04:36,468 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:36,468 INFO L82 PathProgramCache]: Analyzing trace with hash 893492071, now seen corresponding path program 1 times [2021-10-21 20:04:36,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:36,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561081157] [2021-10-21 20:04:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:36,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-21 20:04:36,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:36,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561081157] [2021-10-21 20:04:36,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561081157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:36,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:36,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:36,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151201993] [2021-10-21 20:04:36,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:36,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:36,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,513 INFO L87 Difference]: Start difference. First operand 1555 states and 2182 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:36,665 INFO L93 Difference]: Finished difference Result 3187 states and 4459 transitions. [2021-10-21 20:04:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:36,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2021-10-21 20:04:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:36,675 INFO L225 Difference]: With dead ends: 3187 [2021-10-21 20:04:36,675 INFO L226 Difference]: Without dead ends: 1640 [2021-10-21 20:04:36,677 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2021-10-21 20:04:36,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1624. [2021-10-21 20:04:36,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1623 states have (on average 1.3961799137399877) internal successors, (2266), 1623 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2266 transitions. [2021-10-21 20:04:36,743 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2266 transitions. Word has length 189 [2021-10-21 20:04:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:36,743 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 2266 transitions. [2021-10-21 20:04:36,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2266 transitions. [2021-10-21 20:04:36,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-21 20:04:36,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:36,749 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 20:04:36,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-21 20:04:36,750 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:36,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:36,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1767840956, now seen corresponding path program 1 times [2021-10-21 20:04:36,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:36,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930132090] [2021-10-21 20:04:36,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:36,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-10-21 20:04:36,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:36,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930132090] [2021-10-21 20:04:36,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930132090] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:36,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:36,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:36,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366662594] [2021-10-21 20:04:36,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:36,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,799 INFO L87 Difference]: Start difference. First operand 1624 states and 2266 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:36,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:36,971 INFO L93 Difference]: Finished difference Result 3392 states and 4736 transitions. [2021-10-21 20:04:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:36,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-10-21 20:04:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:36,981 INFO L225 Difference]: With dead ends: 3392 [2021-10-21 20:04:36,981 INFO L226 Difference]: Without dead ends: 1776 [2021-10-21 20:04:36,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2021-10-21 20:04:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1724. [2021-10-21 20:04:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.3847939640162508) internal successors, (2386), 1723 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2386 transitions. [2021-10-21 20:04:37,052 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2386 transitions. Word has length 210 [2021-10-21 20:04:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:37,052 INFO L470 AbstractCegarLoop]: Abstraction has 1724 states and 2386 transitions. [2021-10-21 20:04:37,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2386 transitions. [2021-10-21 20:04:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-10-21 20:04:37,058 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:37,058 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:37,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-21 20:04:37,059 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:37,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:37,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1550608766, now seen corresponding path program 1 times [2021-10-21 20:04:37,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:37,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893251289] [2021-10-21 20:04:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:37,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-10-21 20:04:37,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:37,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893251289] [2021-10-21 20:04:37,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893251289] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:37,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:37,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:37,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258053249] [2021-10-21 20:04:37,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:37,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:37,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:37,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:37,100 INFO L87 Difference]: Start difference. First operand 1724 states and 2386 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:37,300 INFO L93 Difference]: Finished difference Result 3494 states and 4822 transitions. [2021-10-21 20:04:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:37,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-10-21 20:04:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:37,310 INFO L225 Difference]: With dead ends: 3494 [2021-10-21 20:04:37,311 INFO L226 Difference]: Without dead ends: 1778 [2021-10-21 20:04:37,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2021-10-21 20:04:37,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1724. [2021-10-21 20:04:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.380150899593732) internal successors, (2378), 1723 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2378 transitions. [2021-10-21 20:04:37,404 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2378 transitions. Word has length 213 [2021-10-21 20:04:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:37,405 INFO L470 AbstractCegarLoop]: Abstraction has 1724 states and 2378 transitions. [2021-10-21 20:04:37,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2378 transitions. [2021-10-21 20:04:37,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-21 20:04:37,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:37,412 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:04:37,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-21 20:04:37,413 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:37,414 INFO L82 PathProgramCache]: Analyzing trace with hash -615950364, now seen corresponding path program 1 times [2021-10-21 20:04:37,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:37,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195587085] [2021-10-21 20:04:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:37,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-10-21 20:04:37,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:37,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195587085] [2021-10-21 20:04:37,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195587085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:37,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:37,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:37,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756727374] [2021-10-21 20:04:37,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:37,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:37,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:37,479 INFO L87 Difference]: Start difference. First operand 1724 states and 2378 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:37,666 INFO L93 Difference]: Finished difference Result 3636 states and 5036 transitions. [2021-10-21 20:04:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:37,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-10-21 20:04:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:37,677 INFO L225 Difference]: With dead ends: 3636 [2021-10-21 20:04:37,677 INFO L226 Difference]: Without dead ends: 1820 [2021-10-21 20:04:37,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:37,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2021-10-21 20:04:37,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1780. [2021-10-21 20:04:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1779 states have (on average 1.3614390106801575) internal successors, (2422), 1779 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2422 transitions. [2021-10-21 20:04:37,760 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2422 transitions. Word has length 234 [2021-10-21 20:04:37,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:37,761 INFO L470 AbstractCegarLoop]: Abstraction has 1780 states and 2422 transitions. [2021-10-21 20:04:37,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2422 transitions. [2021-10-21 20:04:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-10-21 20:04:37,768 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:37,768 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 20:04:37,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-21 20:04:37,768 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:37,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:37,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1751905145, now seen corresponding path program 1 times [2021-10-21 20:04:37,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:37,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839809796] [2021-10-21 20:04:37,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:37,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-21 20:04:37,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:37,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839809796] [2021-10-21 20:04:37,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839809796] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:37,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:37,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:37,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125826545] [2021-10-21 20:04:37,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:37,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:37,851 INFO L87 Difference]: Start difference. First operand 1780 states and 2422 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:38,049 INFO L93 Difference]: Finished difference Result 3584 states and 4884 transitions. [2021-10-21 20:04:38,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:38,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-10-21 20:04:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:38,060 INFO L225 Difference]: With dead ends: 3584 [2021-10-21 20:04:38,060 INFO L226 Difference]: Without dead ends: 1812 [2021-10-21 20:04:38,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:38,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-10-21 20:04:38,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1780. [2021-10-21 20:04:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1779 states have (on average 1.3501967397414278) internal successors, (2402), 1779 states have internal predecessors, (2402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2402 transitions. [2021-10-21 20:04:38,145 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2402 transitions. Word has length 236 [2021-10-21 20:04:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:38,145 INFO L470 AbstractCegarLoop]: Abstraction has 1780 states and 2402 transitions. [2021-10-21 20:04:38,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2402 transitions. [2021-10-21 20:04:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-21 20:04:38,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:38,153 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 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] [2021-10-21 20:04:38,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-21 20:04:38,154 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:38,154 INFO L82 PathProgramCache]: Analyzing trace with hash 264243297, now seen corresponding path program 1 times [2021-10-21 20:04:38,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:38,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843779981] [2021-10-21 20:04:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:38,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 425 proven. 16 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-10-21 20:04:38,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:38,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843779981] [2021-10-21 20:04:38,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843779981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:38,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006374326] [2021-10-21 20:04:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:38,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:38,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:38,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:38,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:04:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:38,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:04:38,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:39,163 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2021-10-21 20:04:39,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006374326] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:39,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:04:39,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 20:04:39,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463151535] [2021-10-21 20:04:39,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:39,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:39,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:39,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:39,166 INFO L87 Difference]: Start difference. First operand 1780 states and 2402 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:39,247 INFO L93 Difference]: Finished difference Result 3574 states and 4830 transitions. [2021-10-21 20:04:39,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:39,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2021-10-21 20:04:39,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:39,260 INFO L225 Difference]: With dead ends: 3574 [2021-10-21 20:04:39,261 INFO L226 Difference]: Without dead ends: 2235 [2021-10-21 20:04:39,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2021-10-21 20:04:39,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2021-10-21 20:04:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 2234 states have (on average 1.3504923903312445) internal successors, (3017), 2234 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3017 transitions. [2021-10-21 20:04:39,344 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3017 transitions. Word has length 246 [2021-10-21 20:04:39,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:39,344 INFO L470 AbstractCegarLoop]: Abstraction has 2235 states and 3017 transitions. [2021-10-21 20:04:39,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:39,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3017 transitions. [2021-10-21 20:04:39,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-10-21 20:04:39,352 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:39,352 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:04:39,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:39,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:39,567 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:39,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1153610059, now seen corresponding path program 1 times [2021-10-21 20:04:39,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:39,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307397751] [2021-10-21 20:04:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:39,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-21 20:04:39,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:39,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307397751] [2021-10-21 20:04:39,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307397751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:39,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765978765] [2021-10-21 20:04:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:39,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:39,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:39,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:39,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:04:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:39,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:04:39,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-21 20:04:40,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765978765] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:40,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:04:40,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:04:40,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876117393] [2021-10-21 20:04:40,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:04:40,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:40,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:04:40,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:04:40,374 INFO L87 Difference]: Start difference. First operand 2235 states and 3017 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:40,747 INFO L93 Difference]: Finished difference Result 7149 states and 9661 transitions. [2021-10-21 20:04:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:04:40,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-10-21 20:04:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:40,771 INFO L225 Difference]: With dead ends: 7149 [2021-10-21 20:04:40,772 INFO L226 Difference]: Without dead ends: 4922 [2021-10-21 20:04:40,775 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:40,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2021-10-21 20:04:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 2780. [2021-10-21 20:04:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 1.3195394026628284) internal successors, (3667), 2779 states have internal predecessors, (3667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3667 transitions. [2021-10-21 20:04:40,916 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3667 transitions. Word has length 253 [2021-10-21 20:04:40,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:40,917 INFO L470 AbstractCegarLoop]: Abstraction has 2780 states and 3667 transitions. [2021-10-21 20:04:40,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3667 transitions. [2021-10-21 20:04:40,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-10-21 20:04:40,926 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:40,927 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:04:40,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:41,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:41,151 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:41,151 INFO L82 PathProgramCache]: Analyzing trace with hash -864790669, now seen corresponding path program 1 times [2021-10-21 20:04:41,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:41,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229428129] [2021-10-21 20:04:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:41,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-10-21 20:04:41,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:41,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229428129] [2021-10-21 20:04:41,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229428129] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:41,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:41,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:41,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55874688] [2021-10-21 20:04:41,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:41,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:41,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:41,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:41,200 INFO L87 Difference]: Start difference. First operand 2780 states and 3667 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:41,331 INFO L93 Difference]: Finished difference Result 7809 states and 10357 transitions. [2021-10-21 20:04:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-10-21 20:04:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:41,344 INFO L225 Difference]: With dead ends: 7809 [2021-10-21 20:04:41,345 INFO L226 Difference]: Without dead ends: 5037 [2021-10-21 20:04:41,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:41,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5037 states. [2021-10-21 20:04:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5037 to 5035. [2021-10-21 20:04:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 1.3283671036948748) internal successors, (6687), 5034 states have internal predecessors, (6687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 6687 transitions. [2021-10-21 20:04:41,548 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 6687 transitions. Word has length 253 [2021-10-21 20:04:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:41,548 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 6687 transitions. [2021-10-21 20:04:41,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:41,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 6687 transitions. [2021-10-21 20:04:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-10-21 20:04:41,559 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:41,559 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:04:41,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-21 20:04:41,559 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:41,560 INFO L82 PathProgramCache]: Analyzing trace with hash 52349753, now seen corresponding path program 1 times [2021-10-21 20:04:41,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:41,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137765470] [2021-10-21 20:04:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:41,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:04:41,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:41,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137765470] [2021-10-21 20:04:41,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137765470] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:41,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:41,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:41,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786449859] [2021-10-21 20:04:41,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:41,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:41,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:41,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:41,610 INFO L87 Difference]: Start difference. First operand 5035 states and 6687 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:41,910 INFO L93 Difference]: Finished difference Result 10162 states and 13482 transitions. [2021-10-21 20:04:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:41,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2021-10-21 20:04:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:41,923 INFO L225 Difference]: With dead ends: 10162 [2021-10-21 20:04:41,924 INFO L226 Difference]: Without dead ends: 5135 [2021-10-21 20:04:41,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5135 states. [2021-10-21 20:04:42,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5135 to 5035. [2021-10-21 20:04:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 1.3112832737385778) internal successors, (6601), 5034 states have internal predecessors, (6601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 6601 transitions. [2021-10-21 20:04:42,119 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 6601 transitions. Word has length 256 [2021-10-21 20:04:42,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:42,120 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 6601 transitions. [2021-10-21 20:04:42,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 6601 transitions. [2021-10-21 20:04:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-21 20:04:42,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:42,131 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:04:42,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-21 20:04:42,132 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:42,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:42,132 INFO L82 PathProgramCache]: Analyzing trace with hash 212492165, now seen corresponding path program 1 times [2021-10-21 20:04:42,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:42,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387092682] [2021-10-21 20:04:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:42,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 518 proven. 5 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:04:42,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:42,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387092682] [2021-10-21 20:04:42,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387092682] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:42,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847842239] [2021-10-21 20:04:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:42,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:42,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:42,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:42,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:04:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:42,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:04:42,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-10-21 20:04:43,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847842239] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:43,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:04:43,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 20:04:43,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517624943] [2021-10-21 20:04:43,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:43,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:43,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:43,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:43,059 INFO L87 Difference]: Start difference. First operand 5035 states and 6601 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:43,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:43,318 INFO L93 Difference]: Finished difference Result 9422 states and 12426 transitions. [2021-10-21 20:04:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:43,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2021-10-21 20:04:43,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:43,332 INFO L225 Difference]: With dead ends: 9422 [2021-10-21 20:04:43,332 INFO L226 Difference]: Without dead ends: 5375 [2021-10-21 20:04:43,338 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:43,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5375 states. [2021-10-21 20:04:43,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5375 to 5055. [2021-10-21 20:04:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5055 states, 5054 states have (on average 1.307281361297982) internal successors, (6607), 5054 states have internal predecessors, (6607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5055 states to 5055 states and 6607 transitions. [2021-10-21 20:04:43,538 INFO L78 Accepts]: Start accepts. Automaton has 5055 states and 6607 transitions. Word has length 282 [2021-10-21 20:04:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:43,539 INFO L470 AbstractCegarLoop]: Abstraction has 5055 states and 6607 transitions. [2021-10-21 20:04:43,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5055 states and 6607 transitions. [2021-10-21 20:04:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-10-21 20:04:43,549 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:43,550 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:04:43,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:43,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:43,771 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1760130215, now seen corresponding path program 1 times [2021-10-21 20:04:43,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:43,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279639297] [2021-10-21 20:04:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:43,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 518 proven. 5 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:04:43,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:43,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279639297] [2021-10-21 20:04:43,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279639297] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:43,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620357135] [2021-10-21 20:04:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:43,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:43,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:43,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:43,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:04:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:44,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:04:44,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2021-10-21 20:04:44,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620357135] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:44,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:04:44,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 20:04:44,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645802345] [2021-10-21 20:04:44,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:44,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:44,698 INFO L87 Difference]: Start difference. First operand 5055 states and 6607 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:44,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:44,932 INFO L93 Difference]: Finished difference Result 10102 states and 13202 transitions. [2021-10-21 20:04:44,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:44,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2021-10-21 20:04:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:44,945 INFO L225 Difference]: With dead ends: 10102 [2021-10-21 20:04:44,945 INFO L226 Difference]: Without dead ends: 5055 [2021-10-21 20:04:44,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5055 states. [2021-10-21 20:04:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5055 to 5055. [2021-10-21 20:04:45,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5055 states, 5054 states have (on average 1.3053027305104867) internal successors, (6597), 5054 states have internal predecessors, (6597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:45,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5055 states to 5055 states and 6597 transitions. [2021-10-21 20:04:45,119 INFO L78 Accepts]: Start accepts. Automaton has 5055 states and 6597 transitions. Word has length 283 [2021-10-21 20:04:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:45,120 INFO L470 AbstractCegarLoop]: Abstraction has 5055 states and 6597 transitions. [2021-10-21 20:04:45,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5055 states and 6597 transitions. [2021-10-21 20:04:45,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-10-21 20:04:45,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:45,129 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:04:45,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:45,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-10-21 20:04:45,343 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:45,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:45,343 INFO L82 PathProgramCache]: Analyzing trace with hash 228335597, now seen corresponding path program 1 times [2021-10-21 20:04:45,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:45,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471845552] [2021-10-21 20:04:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:45,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:04:45,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:45,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471845552] [2021-10-21 20:04:45,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471845552] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:45,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316176069] [2021-10-21 20:04:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:45,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:45,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:45,463 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:45,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 20:04:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:45,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:04:45,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:04:46,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316176069] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:46,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:04:46,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:04:46,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624736492] [2021-10-21 20:04:46,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:04:46,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:46,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:04:46,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:04:46,370 INFO L87 Difference]: Start difference. First operand 5055 states and 6597 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:46,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:46,787 INFO L93 Difference]: Finished difference Result 11826 states and 15346 transitions. [2021-10-21 20:04:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:04:46,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2021-10-21 20:04:46,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:46,803 INFO L225 Difference]: With dead ends: 11826 [2021-10-21 20:04:46,803 INFO L226 Difference]: Without dead ends: 6713 [2021-10-21 20:04:46,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:46,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2021-10-21 20:04:46,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 4419. [2021-10-21 20:04:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4418 states have (on average 1.2847442281575374) internal successors, (5676), 4418 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 5676 transitions. [2021-10-21 20:04:47,005 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 5676 transitions. Word has length 283 [2021-10-21 20:04:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:47,006 INFO L470 AbstractCegarLoop]: Abstraction has 4419 states and 5676 transitions. [2021-10-21 20:04:47,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 5676 transitions. [2021-10-21 20:04:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-10-21 20:04:47,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:47,015 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-10-21 20:04:47,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-21 20:04:47,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:47,234 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:47,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1511923228, now seen corresponding path program 1 times [2021-10-21 20:04:47,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:47,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487261387] [2021-10-21 20:04:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:47,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-10-21 20:04:47,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:47,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487261387] [2021-10-21 20:04:47,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487261387] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:47,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:47,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:47,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288589200] [2021-10-21 20:04:47,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:47,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:47,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:47,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:47,306 INFO L87 Difference]: Start difference. First operand 4419 states and 5676 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:47,460 INFO L93 Difference]: Finished difference Result 7455 states and 9474 transitions. [2021-10-21 20:04:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:47,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2021-10-21 20:04:47,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:47,467 INFO L225 Difference]: With dead ends: 7455 [2021-10-21 20:04:47,467 INFO L226 Difference]: Without dead ends: 2236 [2021-10-21 20:04:47,472 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2021-10-21 20:04:47,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2236. [2021-10-21 20:04:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2235 states have (on average 1.2644295302013422) internal successors, (2826), 2235 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2826 transitions. [2021-10-21 20:04:47,541 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2826 transitions. Word has length 321 [2021-10-21 20:04:47,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:47,541 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 2826 transitions. [2021-10-21 20:04:47,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2826 transitions. [2021-10-21 20:04:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-21 20:04:47,547 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:47,547 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-10-21 20:04:47,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-21 20:04:47,548 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:47,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:47,548 INFO L82 PathProgramCache]: Analyzing trace with hash 761483812, now seen corresponding path program 1 times [2021-10-21 20:04:47,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:47,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311184733] [2021-10-21 20:04:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:47,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2021-10-21 20:04:47,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:47,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311184733] [2021-10-21 20:04:47,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311184733] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:47,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:47,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:47,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481506436] [2021-10-21 20:04:47,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:47,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:47,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:47,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:47,610 INFO L87 Difference]: Start difference. First operand 2236 states and 2826 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:47,743 INFO L93 Difference]: Finished difference Result 4474 states and 5650 transitions. [2021-10-21 20:04:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:47,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-10-21 20:04:47,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:47,748 INFO L225 Difference]: With dead ends: 4474 [2021-10-21 20:04:47,748 INFO L226 Difference]: Without dead ends: 2246 [2021-10-21 20:04:47,751 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2021-10-21 20:04:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2236. [2021-10-21 20:04:47,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2235 states have (on average 1.2532438478747203) internal successors, (2801), 2235 states have internal predecessors, (2801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2801 transitions. [2021-10-21 20:04:47,841 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2801 transitions. Word has length 360 [2021-10-21 20:04:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:47,842 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 2801 transitions. [2021-10-21 20:04:47,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2801 transitions. [2021-10-21 20:04:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-10-21 20:04:47,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:47,848 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-10-21 20:04:47,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-21 20:04:47,848 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:47,851 INFO L82 PathProgramCache]: Analyzing trace with hash 35349519, now seen corresponding path program 1 times [2021-10-21 20:04:47,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:47,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366412171] [2021-10-21 20:04:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:47,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1011 proven. 26 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-10-21 20:04:47,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:47,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366412171] [2021-10-21 20:04:47,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366412171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:47,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497341758] [2021-10-21 20:04:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:47,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:47,939 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:47,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 20:04:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:48,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:04:48,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2021-10-21 20:04:49,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497341758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:49,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:04:49,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 20:04:49,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028358063] [2021-10-21 20:04:49,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:49,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:49,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:49,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:49,381 INFO L87 Difference]: Start difference. First operand 2236 states and 2801 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:49,462 INFO L93 Difference]: Finished difference Result 2855 states and 3603 transitions. [2021-10-21 20:04:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:49,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2021-10-21 20:04:49,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:49,467 INFO L225 Difference]: With dead ends: 2855 [2021-10-21 20:04:49,468 INFO L226 Difference]: Without dead ends: 2763 [2021-10-21 20:04:49,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:49,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2021-10-21 20:04:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2146. [2021-10-21 20:04:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 2145 states have (on average 1.2587412587412588) internal successors, (2700), 2145 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 2700 transitions. [2021-10-21 20:04:49,544 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 2700 transitions. Word has length 393 [2021-10-21 20:04:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:49,545 INFO L470 AbstractCegarLoop]: Abstraction has 2146 states and 2700 transitions. [2021-10-21 20:04:49,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 2700 transitions. [2021-10-21 20:04:49,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-10-21 20:04:49,551 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:49,552 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:49,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:49,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-21 20:04:49,773 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:49,774 INFO L82 PathProgramCache]: Analyzing trace with hash 431667755, now seen corresponding path program 1 times [2021-10-21 20:04:49,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:49,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338498463] [2021-10-21 20:04:49,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:49,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2021-10-21 20:04:49,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:49,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338498463] [2021-10-21 20:04:49,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338498463] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:49,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049314058] [2021-10-21 20:04:49,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:49,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:49,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:49,891 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:49,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 20:04:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:50,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:04:50,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2021-10-21 20:04:51,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049314058] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:51,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:04:51,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:04:51,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744311063] [2021-10-21 20:04:51,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:04:51,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:51,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:04:51,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:04:51,477 INFO L87 Difference]: Start difference. First operand 2146 states and 2700 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:51,804 INFO L93 Difference]: Finished difference Result 5212 states and 6569 transitions. [2021-10-21 20:04:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:04:51,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2021-10-21 20:04:51,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:51,810 INFO L225 Difference]: With dead ends: 5212 [2021-10-21 20:04:51,810 INFO L226 Difference]: Without dead ends: 3032 [2021-10-21 20:04:51,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2021-10-21 20:04:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2206. [2021-10-21 20:04:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 1.2607709750566893) internal successors, (2780), 2205 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2780 transitions. [2021-10-21 20:04:51,892 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2780 transitions. Word has length 533 [2021-10-21 20:04:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:51,892 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 2780 transitions. [2021-10-21 20:04:51,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2780 transitions. [2021-10-21 20:04:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-10-21 20:04:51,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:51,900 INFO L512 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 17, 17, 15, 15, 13, 13, 11, 11, 11, 11, 8, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:51,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:52,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:52,127 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:52,127 INFO L82 PathProgramCache]: Analyzing trace with hash 316649701, now seen corresponding path program 1 times [2021-10-21 20:04:52,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:52,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331933402] [2021-10-21 20:04:52,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:52,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3976 backedges. 2066 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2021-10-21 20:04:52,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:52,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331933402] [2021-10-21 20:04:52,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331933402] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:52,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:52,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:52,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310716660] [2021-10-21 20:04:52,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:52,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:52,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:52,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:52,284 INFO L87 Difference]: Start difference. First operand 2206 states and 2780 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:52,472 INFO L93 Difference]: Finished difference Result 4584 states and 5788 transitions. [2021-10-21 20:04:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 595 [2021-10-21 20:04:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:52,478 INFO L225 Difference]: With dead ends: 4584 [2021-10-21 20:04:52,478 INFO L226 Difference]: Without dead ends: 2386 [2021-10-21 20:04:52,481 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2021-10-21 20:04:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 2376. [2021-10-21 20:04:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2375 states have (on average 1.2526315789473683) internal successors, (2975), 2375 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 2975 transitions. [2021-10-21 20:04:52,574 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 2975 transitions. Word has length 595 [2021-10-21 20:04:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:52,574 INFO L470 AbstractCegarLoop]: Abstraction has 2376 states and 2975 transitions. [2021-10-21 20:04:52,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 2975 transitions. [2021-10-21 20:04:52,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2021-10-21 20:04:52,582 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:52,583 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 10, 8, 8, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:52,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-21 20:04:52,583 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:52,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:52,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1796704043, now seen corresponding path program 1 times [2021-10-21 20:04:52,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:52,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558771918] [2021-10-21 20:04:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:52,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:52,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4945 backedges. 2605 proven. 0 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked. [2021-10-21 20:04:52,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:52,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558771918] [2021-10-21 20:04:52,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558771918] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:04:52,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:04:52,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:04:52,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539098829] [2021-10-21 20:04:52,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:04:52,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:04:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:52,697 INFO L87 Difference]: Start difference. First operand 2376 states and 2975 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:52,840 INFO L93 Difference]: Finished difference Result 4739 states and 5928 transitions. [2021-10-21 20:04:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:04:52,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 657 [2021-10-21 20:04:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:52,845 INFO L225 Difference]: With dead ends: 4739 [2021-10-21 20:04:52,845 INFO L226 Difference]: Without dead ends: 2371 [2021-10-21 20:04:52,848 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:04:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2021-10-21 20:04:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371. [2021-10-21 20:04:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2370 states have (on average 1.2320675105485233) internal successors, (2920), 2370 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 2920 transitions. [2021-10-21 20:04:52,923 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 2920 transitions. Word has length 657 [2021-10-21 20:04:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:52,924 INFO L470 AbstractCegarLoop]: Abstraction has 2371 states and 2920 transitions. [2021-10-21 20:04:52,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 2920 transitions. [2021-10-21 20:04:52,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2021-10-21 20:04:52,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:04:52,933 INFO L512 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 21, 21, 19, 19, 17, 17, 15, 15, 15, 15, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:04:52,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-21 20:04:52,933 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:04:52,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:04:52,934 INFO L82 PathProgramCache]: Analyzing trace with hash -372840571, now seen corresponding path program 1 times [2021-10-21 20:04:52,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:04:52,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295081827] [2021-10-21 20:04:52,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:52,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:04:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2021-10-21 20:04:53,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:04:53,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295081827] [2021-10-21 20:04:53,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295081827] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:53,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266905783] [2021-10-21 20:04:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:04:53,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:53,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:04:53,155 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:04:53,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 20:04:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:04:53,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:04:53,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:04:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2021-10-21 20:04:55,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266905783] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:04:55,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:04:55,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:04:55,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600390185] [2021-10-21 20:04:55,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:04:55,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:04:55,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:04:55,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:04:55,286 INFO L87 Difference]: Start difference. First operand 2371 states and 2920 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:55,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:04:55,470 INFO L93 Difference]: Finished difference Result 4081 states and 5070 transitions. [2021-10-21 20:04:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:04:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 723 [2021-10-21 20:04:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:04:55,471 INFO L225 Difference]: With dead ends: 4081 [2021-10-21 20:04:55,471 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:04:55,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:04:55,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:04:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:04:55,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:04:55,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 723 [2021-10-21 20:04:55,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:04:55,476 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:04:55,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:04:55,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:04:55,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:04:55,479 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:04:55,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:04:55,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:04:55,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:04:55,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:55,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:56,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:04:57,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:05:08,396 INFO L857 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-10-21 20:05:08,396 INFO L857 garLoopResultBuilder]: For program point L531-2(lines 531 535) no Hoare annotation was computed. [2021-10-21 20:05:08,397 INFO L853 garLoopResultBuilder]: At program point L366(lines 342 384) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse3 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse3 .cse4 .cse5 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,397 INFO L853 garLoopResultBuilder]: At program point L201(lines 197 562) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 0))) (.cse1 (<= 8640 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse0 .cse1) (and .cse0 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8640) .cse2 .cse1) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse3) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse2 .cse1 .cse3))) [2021-10-21 20:05:08,397 INFO L853 garLoopResultBuilder]: At program point L168(lines 164 573) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse2 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse2 .cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,397 INFO L853 garLoopResultBuilder]: At program point L135(lines 134 583) the Hoare annotation is: (let ((.cse0 (not (= 8497 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (<= 8480 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse3 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse8 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8640) .cse9))) [2021-10-21 20:05:08,397 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-10-21 20:05:08,398 INFO L857 garLoopResultBuilder]: For program point L433(lines 433 435) no Hoare annotation was computed. [2021-10-21 20:05:08,398 INFO L853 garLoopResultBuilder]: At program point L400(lines 391 423) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse2 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse2 .cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,398 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 303) no Hoare annotation was computed. [2021-10-21 20:05:08,398 INFO L857 garLoopResultBuilder]: For program point L301-2(lines 219 553) no Hoare annotation was computed. [2021-10-21 20:05:08,398 INFO L860 garLoopResultBuilder]: At program point L632(lines 623 634) the Hoare annotation is: true [2021-10-21 20:05:08,398 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 370) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L203(lines 203 560) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 571) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 582) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L600(lines 600 604) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 340) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 272) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L336-2(lines 219 553) no Hoare annotation was computed. [2021-10-21 20:05:08,399 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 248) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L237-2(lines 219 553) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 421) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 506) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 410) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L206(lines 206 559) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 570) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 581) no Hoare annotation was computed. [2021-10-21 20:05:08,400 INFO L853 garLoopResultBuilder]: At program point L207(lines 203 560) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672))) (.cse1 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 0))) (.cse2 (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse1 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8640) .cse4 .cse2) (and .cse0 .cse1 .cse4 .cse2 .cse3))) [2021-10-21 20:05:08,400 INFO L853 garLoopResultBuilder]: At program point L174(lines 170 571) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse2 .cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse2 .cse3))) [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L472(lines 472 474) no Hoare annotation was computed. [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 558) no Hoare annotation was computed. [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 569) no Hoare annotation was computed. [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 580) no Hoare annotation was computed. [2021-10-21 20:05:08,401 INFO L853 garLoopResultBuilder]: At program point L110-2(lines 110 609) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0)) (.cse17 (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (let ((.cse18 (<= ULTIMATE.start_ssl3_accept_~s__state~0 3)) (.cse23 (not (= 8497 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse24 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse25 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse26 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse10 (= ULTIMATE.start_ssl3_accept_~s__state~0 8592)) (.cse19 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse21 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse22 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448)) (.cse5 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse9 (<= 8640 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse27 (not .cse0)) (.cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0)) (.cse28 (not .cse17)) (.cse11 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse8 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse30 (= ULTIMATE.start_ssl3_accept_~s__state~0 8608)) (.cse12 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse13 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse14 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (.cse15 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (.cse20 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657))) (.cse29 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8656))) (.cse16 (not .cse1)) (.cse6 (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6 .cse2) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8512) .cse1 .cse2) (and .cse7 .cse8 .cse9) (and .cse10 .cse1 .cse5 .cse2) (and .cse7 .cse3 .cse4 .cse6) (and .cse10 .cse11 .cse8 .cse12 .cse13 .cse14) (and .cse8 .cse15 .cse16 .cse9) (and .cse1 .cse2 .cse17) (and .cse2 .cse18) (and .cse3 .cse4 .cse6 .cse14) (and .cse19 .cse5 .cse14) (and .cse15 .cse18) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 3) .cse1 .cse20 .cse21 .cse22) (and .cse23 .cse24 .cse19 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~0)) .cse11 .cse25 .cse7 .cse13 .cse26 .cse21) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8528) .cse1 .cse2) (and .cse8 .cse9 .cse5 .cse2) (and .cse23 .cse24 .cse19 .cse11 .cse25 .cse13 .cse26 .cse21 .cse14) (and .cse10 .cse11 .cse27 .cse7 .cse8 .cse28 .cse12 .cse13) (and .cse8 .cse9 .cse14) (and .cse19 .cse7 .cse5) (and .cse20 .cse3 .cse4 .cse29 .cse5 .cse6) (and .cse19 .cse1 .cse5 .cse2) (and .cse15 .cse16 (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse21 .cse22) (and .cse1 .cse30 .cse5 .cse2) (and .cse8 .cse16 .cse9 .cse2) (and .cse11 .cse27 .cse7 .cse8 .cse30 .cse28 .cse12 .cse13) (and .cse11 .cse8 .cse30 .cse12 .cse13 .cse14) (and .cse20 .cse3 .cse4 .cse15 .cse16 .cse6) (and .cse3 .cse4 .cse16 .cse6 .cse2) (and .cse20 .cse3 .cse4 .cse29 .cse16 .cse6)))) [2021-10-21 20:05:08,401 INFO L857 garLoopResultBuilder]: For program point L441-1(lines 441 449) no Hoare annotation was computed. [2021-10-21 20:05:08,402 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 246) no Hoare annotation was computed. [2021-10-21 20:05:08,402 INFO L853 garLoopResultBuilder]: At program point L177(lines 176 569) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0)) (.cse1 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse2 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2) .cse2 .cse3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 3) .cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse1 .cse2 .cse3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (not .cse0) (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse2 .cse3) (and .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1) .cse3))) [2021-10-21 20:05:08,402 INFO L853 garLoopResultBuilder]: At program point L144(lines 137 582) the Hoare annotation is: (let ((.cse0 (not (= 8497 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse3 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse7 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse9 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse10 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse7 .cse8 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse9 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2) .cse10))) [2021-10-21 20:05:08,402 INFO L857 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-10-21 20:05:08,402 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 547) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 510) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 541 547) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 219 553) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 557) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 568) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 579) no Hoare annotation was computed. [2021-10-21 20:05:08,403 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 590) no Hoare annotation was computed. [2021-10-21 20:05:08,404 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 447) no Hoare annotation was computed. [2021-10-21 20:05:08,404 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 383) no Hoare annotation was computed. [2021-10-21 20:05:08,404 INFO L853 garLoopResultBuilder]: At program point L213(lines 209 558) the Hoare annotation is: (let ((.cse4 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8656))) (.cse2 (not (= 12292 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse4 .cse0 .cse1 .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__hit~0 0)) .cse3) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse3))) [2021-10-21 20:05:08,404 INFO L853 garLoopResultBuilder]: At program point L114(lines 113 590) the Hoare annotation is: false [2021-10-21 20:05:08,404 INFO L860 garLoopResultBuilder]: At program point L610(lines 109 611) the Hoare annotation is: true [2021-10-21 20:05:08,404 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 546) no Hoare annotation was computed. [2021-10-21 20:05:08,405 INFO L853 garLoopResultBuilder]: At program point L412(lines 403 421) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse2 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse2 .cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,405 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 556) no Hoare annotation was computed. [2021-10-21 20:05:08,405 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 567) no Hoare annotation was computed. [2021-10-21 20:05:08,405 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 578) no Hoare annotation was computed. [2021-10-21 20:05:08,405 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 589) no Hoare annotation was computed. [2021-10-21 20:05:08,405 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 382) no Hoare annotation was computed. [2021-10-21 20:05:08,406 INFO L857 garLoopResultBuilder]: For program point L348-1(lines 348 382) no Hoare annotation was computed. [2021-10-21 20:05:08,406 INFO L853 garLoopResultBuilder]: At program point L216(lines 215 556) the Hoare annotation is: (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) [2021-10-21 20:05:08,406 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 568) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse3 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse2 .cse3 .cse4 .cse5 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)))) [2021-10-21 20:05:08,406 INFO L853 garLoopResultBuilder]: At program point L150(lines 146 579) the Hoare annotation is: (let ((.cse0 (<= 8480 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse6 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse8 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse6 .cse7 .cse8 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)))) [2021-10-21 20:05:08,406 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 483) no Hoare annotation was computed. [2021-10-21 20:05:08,406 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 417) no Hoare annotation was computed. [2021-10-21 20:05:08,407 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 379) no Hoare annotation was computed. [2021-10-21 20:05:08,407 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:05:08,407 INFO L853 garLoopResultBuilder]: At program point L218(lines 217 556) the Hoare annotation is: (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) [2021-10-21 20:05:08,407 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 566) no Hoare annotation was computed. [2021-10-21 20:05:08,407 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 577) no Hoare annotation was computed. [2021-10-21 20:05:08,407 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 588) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L615(lines 615 617) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L615-2(lines 615 617) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 519) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 287) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L285-2(lines 219 553) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 326) no Hoare annotation was computed. [2021-10-21 20:05:08,408 INFO L857 garLoopResultBuilder]: For program point L319-2(lines 319 326) no Hoare annotation was computed. [2021-10-21 20:05:08,409 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 264) no Hoare annotation was computed. [2021-10-21 20:05:08,409 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 565) no Hoare annotation was computed. [2021-10-21 20:05:08,409 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 576) no Hoare annotation was computed. [2021-10-21 20:05:08,409 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 587) no Hoare annotation was computed. [2021-10-21 20:05:08,409 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 377) no Hoare annotation was computed. [2021-10-21 20:05:08,409 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 258) no Hoare annotation was computed. [2021-10-21 20:05:08,410 INFO L853 garLoopResultBuilder]: At program point L222(lines 116 589) the Hoare annotation is: (let ((.cse0 (not (= 8497 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse3 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse7 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse9 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse10 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse7 .cse8 .cse9 .cse10 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse7 .cse8 .cse9 .cse10))) [2021-10-21 20:05:08,410 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 566) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse3 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse2 .cse3 .cse4 .cse5 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)))) [2021-10-21 20:05:08,410 INFO L853 garLoopResultBuilder]: At program point L156(lines 152 577) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse3 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse3 .cse4 .cse5 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,410 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:05:08,410 INFO L860 garLoopResultBuilder]: At program point L620(lines 22 622) the Hoare annotation is: true [2021-10-21 20:05:08,411 INFO L853 garLoopResultBuilder]: At program point L554(lines 110 609) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0)) (.cse17 (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (let ((.cse18 (<= ULTIMATE.start_ssl3_accept_~s__state~0 3)) (.cse23 (not (= 8497 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse24 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse25 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse26 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse10 (= ULTIMATE.start_ssl3_accept_~s__state~0 8592)) (.cse19 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse21 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse22 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448)) (.cse5 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse9 (<= 8640 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse27 (not .cse0)) (.cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0)) (.cse28 (not .cse17)) (.cse11 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse8 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse30 (= ULTIMATE.start_ssl3_accept_~s__state~0 8608)) (.cse12 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse13 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse14 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (.cse15 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (.cse20 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657))) (.cse29 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8656))) (.cse16 (not .cse1)) (.cse6 (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6 .cse2) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8512) .cse1 .cse2) (and .cse7 .cse8 .cse9) (and .cse10 .cse1 .cse5 .cse2) (and .cse7 .cse3 .cse4 .cse6) (and .cse10 .cse11 .cse8 .cse12 .cse13 .cse14) (and .cse8 .cse15 .cse16 .cse9) (and .cse1 .cse2 .cse17) (and .cse2 .cse18) (and .cse3 .cse4 .cse6 .cse14) (and .cse19 .cse5 .cse14) (and .cse15 .cse18) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 3) .cse1 .cse20 .cse21 .cse22) (and .cse23 .cse24 .cse19 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~0)) .cse11 .cse25 .cse7 .cse13 .cse26 .cse21) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8528) .cse1 .cse2) (and .cse8 .cse9 .cse5 .cse2) (and .cse23 .cse24 .cse19 .cse11 .cse25 .cse13 .cse26 .cse21 .cse14) (and .cse10 .cse11 .cse27 .cse7 .cse8 .cse28 .cse12 .cse13) (and .cse8 .cse9 .cse14) (and .cse19 .cse7 .cse5) (and .cse20 .cse3 .cse4 .cse29 .cse5 .cse6) (and .cse19 .cse1 .cse5 .cse2) (and .cse15 .cse16 (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse21 .cse22) (and .cse1 .cse30 .cse5 .cse2) (and .cse8 .cse16 .cse9 .cse2) (and .cse11 .cse27 .cse7 .cse8 .cse30 .cse28 .cse12 .cse13) (and .cse11 .cse8 .cse30 .cse12 .cse13 .cse14) (and .cse20 .cse3 .cse4 .cse15 .cse16 .cse6) (and .cse3 .cse4 .cse16 .cse6 .cse2) (and .cse20 .cse3 .cse4 .cse29 .cse16 .cse6)))) [2021-10-21 20:05:08,411 INFO L857 garLoopResultBuilder]: For program point L455(lines 455 457) no Hoare annotation was computed. [2021-10-21 20:05:08,411 INFO L857 garLoopResultBuilder]: For program point L323(lines 323 325) no Hoare annotation was computed. [2021-10-21 20:05:08,411 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 564) no Hoare annotation was computed. [2021-10-21 20:05:08,411 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 575) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 586) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 361) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point L357-2(lines 357 361) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 492) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 423) no Hoare annotation was computed. [2021-10-21 20:05:08,412 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 526) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 467) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 398) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 563) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 574) no Hoare annotation was computed. [2021-10-21 20:05:08,413 INFO L857 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-10-21 20:05:08,414 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 585) no Hoare annotation was computed. [2021-10-21 20:05:08,414 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 607) no Hoare annotation was computed. [2021-10-21 20:05:08,414 INFO L853 garLoopResultBuilder]: At program point L525(lines 83 621) the Hoare annotation is: false [2021-10-21 20:05:08,414 INFO L853 garLoopResultBuilder]: At program point L195(lines 191 564) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8608))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse0) (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)) (and (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)))) [2021-10-21 20:05:08,414 INFO L853 garLoopResultBuilder]: At program point L162(lines 158 575) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse3 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (<= 8512 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse3 .cse4 .cse5 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L592(lines 592 606) no Hoare annotation was computed. [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 598) no Hoare annotation was computed. [2021-10-21 20:05:08,415 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 529) no Hoare annotation was computed. [2021-10-21 20:05:08,416 INFO L857 garLoopResultBuilder]: For program point L593-2(lines 592 606) no Hoare annotation was computed. [2021-10-21 20:05:08,416 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 562) no Hoare annotation was computed. [2021-10-21 20:05:08,416 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 573) no Hoare annotation was computed. [2021-10-21 20:05:08,416 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 584) no Hoare annotation was computed. [2021-10-21 20:05:08,416 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:05:08,416 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-10-21 20:05:08,417 INFO L857 garLoopResultBuilder]: For program point L462(lines 462 464) no Hoare annotation was computed. [2021-10-21 20:05:08,417 INFO L853 garLoopResultBuilder]: At program point L132(lines 128 585) the Hoare annotation is: (let ((.cse0 (not (= 8497 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (<= 8480 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse3 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse6 (not (= 8560 ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse8 (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 0) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_ssl3_accept_~s__hit~0 0) .cse6 .cse7 .cse8 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 1)))) [2021-10-21 20:05:08,417 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 597) no Hoare annotation was computed. [2021-10-21 20:05:08,417 INFO L857 garLoopResultBuilder]: For program point L298(lines 298 304) no Hoare annotation was computed. [2021-10-21 20:05:08,417 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-10-21 20:05:08,417 INFO L857 garLoopResultBuilder]: For program point L365(lines 365 373) no Hoare annotation was computed. [2021-10-21 20:05:08,418 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 561) no Hoare annotation was computed. [2021-10-21 20:05:08,418 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 572) no Hoare annotation was computed. [2021-10-21 20:05:08,418 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 583) no Hoare annotation was computed. [2021-10-21 20:05:08,418 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-10-21 20:05:08,418 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 83 621) no Hoare annotation was computed. [2021-10-21 20:05:08,423 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:05:08,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:05:08 BoogieIcfgContainer [2021-10-21 20:05:08,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:05:08,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:05:08,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:05:08,466 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:05:08,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:04:31" (3/4) ... [2021-10-21 20:05:08,469 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:05:08,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 20:05:08,490 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:05:08,491 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:05:08,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:05:08,594 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:05:08,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:05:08,596 INFO L168 Benchmark]: Toolchain (without parser) took 39046.81 ms. Allocated memory was 83.9 MB in the beginning and 513.8 MB in the end (delta: 429.9 MB). Free memory was 45.9 MB in the beginning and 186.2 MB in the end (delta: -140.3 MB). Peak memory consumption was 289.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,596 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory is still 63.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:05:08,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.19 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 45.7 MB in the beginning and 86.2 MB in the end (delta: -40.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.35 ms. Allocated memory is still 115.3 MB. Free memory was 86.2 MB in the beginning and 83.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,598 INFO L168 Benchmark]: Boogie Preprocessor took 51.54 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,598 INFO L168 Benchmark]: RCFGBuilder took 865.98 ms. Allocated memory is still 115.3 MB. Free memory was 81.3 MB in the beginning and 80.6 MB in the end (delta: 644.9 kB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,598 INFO L168 Benchmark]: TraceAbstraction took 37459.02 ms. Allocated memory was 115.3 MB in the beginning and 513.8 MB in the end (delta: 398.5 MB). Free memory was 79.8 MB in the beginning and 198.8 MB in the end (delta: -119.0 MB). Peak memory consumption was 356.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,599 INFO L168 Benchmark]: Witness Printer took 129.43 ms. Allocated memory is still 513.8 MB. Free memory was 198.8 MB in the beginning and 186.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:08,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory is still 63.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 426.19 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 45.7 MB in the beginning and 86.2 MB in the end (delta: -40.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.35 ms. Allocated memory is still 115.3 MB. Free memory was 86.2 MB in the beginning and 83.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.54 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 865.98 ms. Allocated memory is still 115.3 MB. Free memory was 81.3 MB in the beginning and 80.6 MB in the end (delta: 644.9 kB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37459.02 ms. Allocated memory was 115.3 MB in the beginning and 513.8 MB in the end (delta: 398.5 MB). Free memory was 79.8 MB in the beginning and 198.8 MB in the end (delta: -119.0 MB). Peak memory consumption was 356.1 MB. Max. memory is 16.1 GB. * Witness Printer took 129.43 ms. Allocated memory is still 513.8 MB. Free memory was 198.8 MB in the beginning and 186.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37351.9ms, OverallIterations: 39, TraceHistogramMax: 24, EmptinessCheckTime: 205.5ms, AutomataDifference: 7206.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 12708.5ms, InitialAbstractionConstructionTime: 14.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7382 SDtfs, 4553 SDslu, 3427 SDs, 0 SdLazy, 3933 SolverSat, 1076 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3171.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3121 GetRequests, 3066 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 141.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5055occurred in iteration=30, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2687.2ms AutomataMinimizationTime, 39 MinimizatonAttempts, 6779 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 260 NumberOfFragments, 2609 HoareAnnotationTreeSize, 28 FomulaSimplifications, 417097 FormulaSimplificationTreeSizeReduction, 3028.6ms HoareSimplificationTime, 28 FomulaSimplificationsInter, 120232 FormulaSimplificationTreeSizeReductionInter, 9649.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 321.5ms SsaConstructionTime, 1207.3ms SatisfiabilityAnalysisTime, 8158.0ms InterpolantComputationTime, 11577 NumberOfCodeBlocks, 11577 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 11530 ConstructedInterpolants, 0 QuantifiedInterpolants, 15349 SizeOfPredicates, 4 NumberOfNonLiveVariables, 5044 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 47 InterpolantComputations, 35 PerfectInterpolantSequences, 44574/44754 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((((((s__state <= 8576 && !(s__state == 8561)) && s__hit == 0) && !(8560 == s__state)) && 8512 <= s__state) && blastFlag <= 2) || ((((s__state <= 8576 && !(s__state == 8561)) && blastFlag == 0) && !(8560 == s__state)) && 8512 <= s__state)) || ((((s__state <= 8576 && !(s__state == 8561)) && !(8560 == s__state)) && 8512 <= s__state) && blastFlag == 1) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((((((((!(8497 == s__state) && 8480 <= s__state) && !(s__state == 8480)) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && s__state <= 8640) && !(8560 == s__state)) && !(s__state == 8545)) && blastFlag <= 2) || ((((((((((!(8497 == s__state) && 8480 <= s__state) && !(s__state == 8480)) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && s__state <= 8640) && !(8560 == s__state)) && s__s3__tmp__next_state___0 <= 8640) && !(s__state == 8545)) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: !(s__state == 8672) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((((!(s__state == 8672) && s__state <= 8672) && s__s3__tmp__next_state___0 <= 8576) && 8656 <= s__state) && blastFlag <= 2) || (((!(s__state == 8672) && blastFlag == 0) && s__state <= 8672) && 8656 <= s__state)) || (((!(s__state == 8672) && s__state <= 8672) && 8656 <= s__state) && blastFlag == 1)) || (((((!(s__state == 8672) && blastFlag <= 3) && s__state <= 8672) && s__s3__tmp__next_state___0 <= 8640) && !(s__hit == 0)) && 8656 <= s__state)) || ((((!(s__state == 8672) && s__state <= 8672) && !(s__hit == 0)) && 8656 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((blastFlag == 0 && s__state == 8608) || (s__state == 8608 && blastFlag == 1)) || (((s__hit == 0 && s__state == 8608) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(8560 == s__state)) && !(s__state == 8545)) && !(8448 == s__state)) && 8448 <= s__state) && blastFlag == 1) || (((((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && blastFlag == 0) && !(8560 == s__state)) && !(s__state == 8545)) && !(8448 == s__state)) && 8448 <= s__state)) || (((((((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && s__hit == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && !(8448 == s__state)) && blastFlag <= 2) && 8448 <= s__state) - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: ((((((s__state <= 8576 && !(s__state == 8561)) && s__hit == 0) && !(8560 == s__state)) && 8512 <= s__state) && blastFlag <= 2) || ((((s__state <= 8576 && !(s__state == 8561)) && blastFlag == 0) && !(8560 == s__state)) && 8512 <= s__state)) || ((((s__state <= 8576 && !(s__state == 8561)) && !(8560 == s__state)) && 8512 <= s__state) && blastFlag == 1) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: !(s__state == 8672) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((s__state == 8544 && s__hit == 0) && blastFlag <= 2) || ((((s__state <= 8672 && !(s__state == 8657)) && s__s3__tmp__next_state___0 <= 8576) && 8656 <= s__state) && blastFlag <= 2)) || ((s__state == 8512 && s__hit == 0) && blastFlag <= 2)) || ((blastFlag == 0 && s__state <= 8640) && 8640 <= s__state)) || (((s__state == 8592 && s__hit == 0) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || (((blastFlag == 0 && s__state <= 8672) && !(s__state == 8657)) && 8656 <= s__state)) || (((((s__state == 8592 && !(s__state == 8561)) && s__state <= 8640) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1)) || (((s__state <= 8640 && s__s3__tmp__next_state___0 <= 8640) && !(s__hit == 0)) && 8640 <= s__state)) || ((s__hit == 0 && blastFlag <= 2) && 8560 == s__state)) || (blastFlag <= 2 && s__state <= 3)) || (((s__state <= 8672 && !(s__state == 8657)) && 8656 <= s__state) && blastFlag == 1)) || ((s__state <= 8576 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 1)) || (s__s3__tmp__next_state___0 <= 8640 && s__state <= 3)) || ((((s__s3__tmp__next_state___0 <= 3 && s__hit == 0) && blastFlag <= 3) && 8448 <= s__state) && s__state <= 8448)) || (((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8481)) && blastFlag == 0) && !(s__state == 8545)) && !(8448 == s__state)) && 8448 <= s__state)) || ((s__state == 8528 && s__hit == 0) && blastFlag <= 2)) || (((s__state <= 8640 && 8640 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || ((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(s__state == 8561)) && !(s__state == 8481)) && !(s__state == 8545)) && !(8448 == s__state)) && 8448 <= s__state) && blastFlag == 1)) || (((((((s__state == 8592 && !(s__state == 8561)) && !(s__state == 8544)) && blastFlag == 0) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || ((s__state <= 8640 && 8640 <= s__state) && blastFlag == 1)) || ((s__state <= 8576 && blastFlag == 0) && s__s3__tmp__next_state___0 <= 8576)) || (((((blastFlag <= 3 && s__state <= 8672) && !(s__state == 8657)) && !(s__state == 8656)) && s__s3__tmp__next_state___0 <= 8576) && 8656 <= s__state)) || (((s__state <= 8576 && s__hit == 0) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || ((((s__s3__tmp__next_state___0 <= 8640 && !(s__hit == 0)) && 8640 <= s__s3__tmp__next_state___0) && 8448 <= s__state) && s__state <= 8448)) || (((s__hit == 0 && s__state == 8608) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || (((s__state <= 8640 && !(s__hit == 0)) && 8640 <= s__state) && blastFlag <= 2)) || (((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag == 0) && s__state <= 8640) && s__state == 8608) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || (((((!(s__state == 8561) && s__state <= 8640) && s__state == 8608) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1)) || (((((blastFlag <= 3 && s__state <= 8672) && !(s__state == 8657)) && s__s3__tmp__next_state___0 <= 8640) && !(s__hit == 0)) && 8656 <= s__state)) || ((((s__state <= 8672 && !(s__state == 8657)) && !(s__hit == 0)) && 8656 <= s__state) && blastFlag <= 2)) || (((((blastFlag <= 3 && s__state <= 8672) && !(s__state == 8657)) && !(s__state == 8656)) && !(s__hit == 0)) && 8656 <= s__state) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: ((((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && s__hit == 0) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag <= 2) || ((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && blastFlag == 0) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || ((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && !(8448 == s__state)) && blastFlag == 1) || ((((((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && s__hit == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && !(8448 == s__state)) && blastFlag <= 2)) || (((((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && blastFlag == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && !(8448 == s__state)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2) && 8448 <= s__state) && s__state <= 8448) || ((((s__s3__tmp__next_state___0 <= 3 && s__hit == 0) && blastFlag <= 3) && 8448 <= s__state) && s__state <= 8448)) || (((blastFlag == 0 && s__s3__tmp__next_state___0 <= 8576) && 8448 <= s__state) && s__state <= 8448)) || ((((s__s3__tmp__next_state___0 <= 8640 && !(s__hit == 0)) && 8640 <= s__s3__tmp__next_state___0) && 8448 <= s__state) && s__state <= 8448)) || (((s__s3__tmp__next_state___0 <= 8576 && 8448 <= s__state) && blastFlag == 1) && s__state <= 8448) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag == 0) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) || ((((((!(s__state == 8561) && !(s__state == 8544)) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1)) || ((((((((!(s__state == 8561) && !(s__state == 8544)) && s__hit == 0) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 403]: Loop Invariant Derived loop invariant: ((((((s__state <= 8576 && !(s__state == 8561)) && s__hit == 0) && !(8560 == s__state)) && 8512 <= s__state) && blastFlag <= 2) || ((((s__state <= 8576 && !(s__state == 8561)) && blastFlag == 0) && !(8560 == s__state)) && 8512 <= s__state)) || ((((s__state <= 8576 && !(s__state == 8561)) && !(8560 == s__state)) && 8512 <= s__state) && blastFlag == 1) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: ((((((!(s__state == 8657) && !(s__state == 8656)) && !(12292 == s__state)) && 8656 <= s__state) && blastFlag == 1) || (((((blastFlag <= 3 && !(s__state == 8657)) && !(s__state == 8656)) && !(12292 == s__state)) && !(s__hit == 0)) && 8656 <= s__state)) || ((((blastFlag == 0 && !(s__state == 8657)) && !(s__state == 8656)) && !(12292 == s__state)) && 8656 <= s__state)) || (((((blastFlag <= 3 && !(s__state == 8657)) && !(s__state == 8656)) && !(12292 == s__state)) && s__s3__tmp__next_state___0 <= 8576) && 8656 <= s__state) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((((((((((!(8497 == s__state) && 8480 <= s__state) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && blastFlag == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) || ((((((((((!(8497 == s__state) && 8480 <= s__state) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && s__hit == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || (((((((((!(8497 == s__state) && 8480 <= s__state) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8544)) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 1) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && s__hit == 0) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag <= 2) || ((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && blastFlag == 0) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || ((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1) - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((((s__state <= 8576 && !(s__state == 8544)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1) || (((((s__state <= 8576 && !(s__state == 8544)) && s__hit == 0) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag <= 2)) || ((((s__state <= 8576 && !(s__state == 8544)) && blastFlag == 0) && 8512 <= s__state) && !(s__state == 8545)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag == 0) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) || ((((((!(s__state == 8561) && !(s__state == 8544)) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1)) || ((((((((!(s__state == 8561) && !(s__state == 8544)) && s__hit == 0) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((((((8480 <= s__state && !(s__state == 8480)) && s__state <= 8576) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(8560 == s__state)) && !(s__state == 8545)) && blastFlag == 1) || (((((((((8480 <= s__state && !(s__state == 8480)) && s__state <= 8576) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && blastFlag == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576)) || ((((((((((8480 <= s__state && !(s__state == 8480)) && s__state <= 8576) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && s__hit == 0) && !(8560 == s__state)) && !(s__state == 8545)) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((((blastFlag == 0 && s__state <= 8640) && 8640 <= s__state) || (((s__state <= 8640 && s__s3__tmp__next_state___0 <= 8640) && !(s__hit == 0)) && 8640 <= s__state)) || (((s__state <= 8640 && 8640 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || ((s__state <= 8640 && 8640 <= s__state) && blastFlag == 1)) || (((s__state <= 8640 && !(s__hit == 0)) && 8640 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && s__hit == 0) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag <= 2) || ((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && blastFlag == 0) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || ((((((s__state <= 8576 && !(s__state == 8561)) && !(s__state == 8544)) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((s__state == 8544 && s__hit == 0) && blastFlag <= 2) || ((((s__state <= 8672 && !(s__state == 8657)) && s__s3__tmp__next_state___0 <= 8576) && 8656 <= s__state) && blastFlag <= 2)) || ((s__state == 8512 && s__hit == 0) && blastFlag <= 2)) || ((blastFlag == 0 && s__state <= 8640) && 8640 <= s__state)) || (((s__state == 8592 && s__hit == 0) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || (((blastFlag == 0 && s__state <= 8672) && !(s__state == 8657)) && 8656 <= s__state)) || (((((s__state == 8592 && !(s__state == 8561)) && s__state <= 8640) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1)) || (((s__state <= 8640 && s__s3__tmp__next_state___0 <= 8640) && !(s__hit == 0)) && 8640 <= s__state)) || ((s__hit == 0 && blastFlag <= 2) && 8560 == s__state)) || (blastFlag <= 2 && s__state <= 3)) || (((s__state <= 8672 && !(s__state == 8657)) && 8656 <= s__state) && blastFlag == 1)) || ((s__state <= 8576 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 1)) || (s__s3__tmp__next_state___0 <= 8640 && s__state <= 3)) || ((((s__s3__tmp__next_state___0 <= 3 && s__hit == 0) && blastFlag <= 3) && 8448 <= s__state) && s__state <= 8448)) || (((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(8496 == s__state)) && !(s__state == 8561)) && !(s__state == 8481)) && blastFlag == 0) && !(s__state == 8545)) && !(8448 == s__state)) && 8448 <= s__state)) || ((s__state == 8528 && s__hit == 0) && blastFlag <= 2)) || (((s__state <= 8640 && 8640 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || ((((((((!(8497 == s__state) && !(s__state == 8480)) && s__state <= 8576) && !(s__state == 8561)) && !(s__state == 8481)) && !(s__state == 8545)) && !(8448 == s__state)) && 8448 <= s__state) && blastFlag == 1)) || (((((((s__state == 8592 && !(s__state == 8561)) && !(s__state == 8544)) && blastFlag == 0) && s__state <= 8640) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || ((s__state <= 8640 && 8640 <= s__state) && blastFlag == 1)) || ((s__state <= 8576 && blastFlag == 0) && s__s3__tmp__next_state___0 <= 8576)) || (((((blastFlag <= 3 && s__state <= 8672) && !(s__state == 8657)) && !(s__state == 8656)) && s__s3__tmp__next_state___0 <= 8576) && 8656 <= s__state)) || (((s__state <= 8576 && s__hit == 0) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || ((((s__s3__tmp__next_state___0 <= 8640 && !(s__hit == 0)) && 8640 <= s__s3__tmp__next_state___0) && 8448 <= s__state) && s__state <= 8448)) || (((s__hit == 0 && s__state == 8608) && s__s3__tmp__next_state___0 <= 8576) && blastFlag <= 2)) || (((s__state <= 8640 && !(s__hit == 0)) && 8640 <= s__state) && blastFlag <= 2)) || (((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag == 0) && s__state <= 8640) && s__state == 8608) && !(8560 == s__state)) && 8512 <= s__state) && !(s__state == 8545))) || (((((!(s__state == 8561) && s__state <= 8640) && s__state == 8608) && 8512 <= s__state) && !(s__state == 8545)) && blastFlag == 1)) || (((((blastFlag <= 3 && s__state <= 8672) && !(s__state == 8657)) && s__s3__tmp__next_state___0 <= 8640) && !(s__hit == 0)) && 8656 <= s__state)) || ((((s__state <= 8672 && !(s__state == 8657)) && !(s__hit == 0)) && 8656 <= s__state) && blastFlag <= 2)) || (((((blastFlag <= 3 && s__state <= 8672) && !(s__state == 8657)) && !(s__state == 8656)) && !(s__hit == 0)) && 8656 <= s__state) RESULT: Ultimate proved your program to be correct! [2021-10-21 20:05:08,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c9b1e1-b54f-4d24-b64e-427063575e93/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...