./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt --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 51c32a91c699292d3a71549ca427833cc8b88f69 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:58:49,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:58:49,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:58:49,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:58:49,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:58:49,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:58:49,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:58:49,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:58:49,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:58:49,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:58:49,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:58:49,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:58:49,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:58:49,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:58:49,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:58:49,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:58:49,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:58:49,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:58:49,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:58:49,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:58:49,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:58:49,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:58:49,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:58:49,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:58:49,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:58:49,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:58:49,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:58:49,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:58:49,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:58:49,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:58:49,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:58:49,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:58:49,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:58:49,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:58:49,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:58:49,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:58:49,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:58:49,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:58:49,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:58:49,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:58:49,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:58:49,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:58:49,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:58:49,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:58:49,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:58:49,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:58:49,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:58:49,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:58:49,522 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:58:49,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:58:49,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:58:49,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:58:49,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:58:49,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:58:49,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:58:49,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:58:49,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:58:49,527 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:58:49,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:58:49,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:58:49,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:58:49,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:58:49,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:58:49,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:58:49,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:58:49,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:58:49,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:58:49,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:58:49,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:58:49,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:58:49,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:58:49,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:58:49,534 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_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c32a91c699292d3a71549ca427833cc8b88f69 [2021-10-13 00:58:49,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:58:49,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:58:49,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:58:49,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:58:49,906 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:58:49,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2021-10-13 00:58:50,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/data/aa902de9a/2e31a7b8675a4859a97f83d413f2bab5/FLAG33034cebe [2021-10-13 00:58:50,608 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:58:50,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2021-10-13 00:58:50,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/data/aa902de9a/2e31a7b8675a4859a97f83d413f2bab5/FLAG33034cebe [2021-10-13 00:58:50,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/data/aa902de9a/2e31a7b8675a4859a97f83d413f2bab5 [2021-10-13 00:58:50,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:58:50,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:58:50,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:50,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:58:50,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:58:50,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:50" (1/1) ... [2021-10-13 00:58:50,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660b9786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:50, skipping insertion in model container [2021-10-13 00:58:50,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:50" (1/1) ... [2021-10-13 00:58:50,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:58:51,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:58:51,287 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_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c[35356,35369] [2021-10-13 00:58:51,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:51,307 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:58:51,375 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_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c[35356,35369] [2021-10-13 00:58:51,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:51,395 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:58:51,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51 WrapperNode [2021-10-13 00:58:51,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:51,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:58:51,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:58:51,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:58:51,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:58:51,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:58:51,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:58:51,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:58:51,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:58:51,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:58:51,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:58:51,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:58:51,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (1/1) ... [2021-10-13 00:58:51,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:58:51,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:58:51,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:58:51,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:58:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:58:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:58:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:58:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:58:51,907 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:58:52,533 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-13 00:58:52,533 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-13 00:58:52,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:58:52,559 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:58:52,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:52 BoogieIcfgContainer [2021-10-13 00:58:52,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:58:52,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:58:52,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:58:52,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:58:52,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:58:50" (1/3) ... [2021-10-13 00:58:52,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bb8752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:52, skipping insertion in model container [2021-10-13 00:58:52,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:51" (2/3) ... [2021-10-13 00:58:52,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bb8752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:52, skipping insertion in model container [2021-10-13 00:58:52,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:52" (3/3) ... [2021-10-13 00:58:52,577 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-1.c [2021-10-13 00:58:52,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:58:52,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:58:52,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:58:52,656 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:58:52,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:58:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 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) [2021-10-13 00:58:52,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:58:52,691 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:52,692 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] [2021-10-13 00:58:52,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:52,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-10-13 00:58:52,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:52,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665129195] [2021-10-13 00:58:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:52,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:52,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:52,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665129195] [2021-10-13 00:58:52,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665129195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:52,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:52,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:52,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686912303] [2021-10-13 00:58:52,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:52,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:52,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:53,003 INFO L87 Difference]: Start difference. First operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-13 00:58:53,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:53,292 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-10-13 00:58:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-13 00:58:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:53,308 INFO L225 Difference]: With dead ends: 252 [2021-10-13 00:58:53,309 INFO L226 Difference]: Without dead ends: 115 [2021-10-13 00:58:53,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:53,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-13 00:58:53,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-13 00:58:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 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) [2021-10-13 00:58:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-10-13 00:58:53,363 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-10-13 00:58:53,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:53,363 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-10-13 00:58:53,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-13 00:58:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-10-13 00:58:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 00:58:53,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:53,366 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:53,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:58:53,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:53,368 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-10-13 00:58:53,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:53,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389677249] [2021-10-13 00:58:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:53,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:53,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:53,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389677249] [2021-10-13 00:58:53,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389677249] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:53,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:53,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:53,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206264005] [2021-10-13 00:58:53,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:53,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:53,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:53,597 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-13 00:58:53,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:53,746 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2021-10-13 00:58:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:53,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-10-13 00:58:53,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:53,754 INFO L225 Difference]: With dead ends: 238 [2021-10-13 00:58:53,754 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 00:58:53,756 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 00:58:53,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-10-13 00:58:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4883720930232558) internal successors, (192), 129 states have internal predecessors, (192), 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) [2021-10-13 00:58:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-10-13 00:58:53,783 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-10-13 00:58:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:53,784 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-10-13 00:58:53,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-10-13 00:58:53,786 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-10-13 00:58:53,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 00:58:53,792 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:53,793 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:53,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:58:53,794 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:53,796 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2021-10-13 00:58:53,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:53,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065783811] [2021-10-13 00:58:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:53,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:58:53,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:53,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065783811] [2021-10-13 00:58:53,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065783811] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:53,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:53,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:53,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716389853] [2021-10-13 00:58:53,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:53,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:53,940 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-13 00:58:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:54,085 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2021-10-13 00:58:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:54,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2021-10-13 00:58:54,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:54,088 INFO L225 Difference]: With dead ends: 271 [2021-10-13 00:58:54,088 INFO L226 Difference]: Without dead ends: 151 [2021-10-13 00:58:54,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:54,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-13 00:58:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2021-10-13 00:58:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 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) [2021-10-13 00:58:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-10-13 00:58:54,105 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-10-13 00:58:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:54,106 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-10-13 00:58:54,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-13 00:58:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-10-13 00:58:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-13 00:58:54,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:54,109 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:54,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:58:54,110 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:54,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1231505257, now seen corresponding path program 1 times [2021-10-13 00:58:54,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:54,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189687495] [2021-10-13 00:58:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:54,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 00:58:54,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:54,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189687495] [2021-10-13 00:58:54,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189687495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:54,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:54,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:54,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586873847] [2021-10-13 00:58:54,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:54,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:54,203 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-10-13 00:58:54,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:54,461 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2021-10-13 00:58:54,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:54,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 68 [2021-10-13 00:58:54,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:54,466 INFO L225 Difference]: With dead ends: 335 [2021-10-13 00:58:54,467 INFO L226 Difference]: Without dead ends: 197 [2021-10-13 00:58:54,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-13 00:58:54,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2021-10-13 00:58:54,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.411764705882353) internal successors, (264), 187 states have internal predecessors, (264), 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) [2021-10-13 00:58:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2021-10-13 00:58:54,514 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2021-10-13 00:58:54,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:54,525 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2021-10-13 00:58:54,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-10-13 00:58:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2021-10-13 00:58:54,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-13 00:58:54,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:54,534 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:54,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:58:54,535 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:54,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1258023705, now seen corresponding path program 1 times [2021-10-13 00:58:54,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:54,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935906851] [2021-10-13 00:58:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:54,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 00:58:54,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:54,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935906851] [2021-10-13 00:58:54,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935906851] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:54,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:54,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:54,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467589867] [2021-10-13 00:58:54,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:54,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:54,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:54,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:54,659 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-10-13 00:58:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:54,806 INFO L93 Difference]: Finished difference Result 391 states and 557 transitions. [2021-10-13 00:58:54,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:54,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 68 [2021-10-13 00:58:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:54,809 INFO L225 Difference]: With dead ends: 391 [2021-10-13 00:58:54,810 INFO L226 Difference]: Without dead ends: 213 [2021-10-13 00:58:54,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:54,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-13 00:58:54,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2021-10-13 00:58:54,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3980582524271845) internal successors, (288), 206 states have internal predecessors, (288), 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) [2021-10-13 00:58:54,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-10-13 00:58:54,833 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2021-10-13 00:58:54,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:54,833 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-10-13 00:58:54,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-10-13 00:58:54,834 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-10-13 00:58:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-13 00:58:54,843 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:54,844 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:54,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:58:54,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:54,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1378844437, now seen corresponding path program 1 times [2021-10-13 00:58:54,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:54,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55374786] [2021-10-13 00:58:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:54,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-13 00:58:54,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:54,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55374786] [2021-10-13 00:58:54,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55374786] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:54,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:54,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:54,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663884636] [2021-10-13 00:58:54,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:54,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:54,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:54,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:54,979 INFO L87 Difference]: Start difference. First operand 207 states and 288 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) [2021-10-13 00:58:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:55,121 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2021-10-13 00:58:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:55,123 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 85 [2021-10-13 00:58:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:55,133 INFO L225 Difference]: With dead ends: 428 [2021-10-13 00:58:55,133 INFO L226 Difference]: Without dead ends: 231 [2021-10-13 00:58:55,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-13 00:58:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2021-10-13 00:58:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.3832599118942732) internal successors, (314), 227 states have internal predecessors, (314), 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) [2021-10-13 00:58:55,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-10-13 00:58:55,149 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2021-10-13 00:58:55,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:55,152 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-10-13 00:58:55,152 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) [2021-10-13 00:58:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2021-10-13 00:58:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-13 00:58:55,155 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:55,155 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:55,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:58:55,156 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:55,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:55,156 INFO L82 PathProgramCache]: Analyzing trace with hash 311084899, now seen corresponding path program 1 times [2021-10-13 00:58:55,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:55,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722196869] [2021-10-13 00:58:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:55,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:55,286 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 00:58:55,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:55,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722196869] [2021-10-13 00:58:55,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722196869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:55,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:55,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:55,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455652702] [2021-10-13 00:58:55,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:55,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:55,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:55,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,289 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-10-13 00:58:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:55,342 INFO L93 Difference]: Finished difference Result 660 states and 910 transitions. [2021-10-13 00:58:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:55,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 [2021-10-13 00:58:55,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:55,347 INFO L225 Difference]: With dead ends: 660 [2021-10-13 00:58:55,347 INFO L226 Difference]: Without dead ends: 442 [2021-10-13 00:58:55,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-10-13 00:58:55,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-10-13 00:58:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3718820861678005) internal successors, (605), 441 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) [2021-10-13 00:58:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 605 transitions. [2021-10-13 00:58:55,390 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 605 transitions. Word has length 105 [2021-10-13 00:58:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:55,391 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 605 transitions. [2021-10-13 00:58:55,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-10-13 00:58:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 605 transitions. [2021-10-13 00:58:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-13 00:58:55,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:55,393 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:55,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:58:55,394 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:55,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash 990357153, now seen corresponding path program 1 times [2021-10-13 00:58:55,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:55,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373709148] [2021-10-13 00:58:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:55,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-13 00:58:55,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:55,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373709148] [2021-10-13 00:58:55,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373709148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:55,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:55,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:55,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134816137] [2021-10-13 00:58:55,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:55,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:55,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,480 INFO L87 Difference]: Start difference. First operand 442 states and 605 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) [2021-10-13 00:58:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:55,510 INFO L93 Difference]: Finished difference Result 895 states and 1224 transitions. [2021-10-13 00:58:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:55,511 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 105 [2021-10-13 00:58:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:55,516 INFO L225 Difference]: With dead ends: 895 [2021-10-13 00:58:55,516 INFO L226 Difference]: Without dead ends: 463 [2021-10-13 00:58:55,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-10-13 00:58:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2021-10-13 00:58:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.367965367965368) internal successors, (632), 462 states have internal predecessors, (632), 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) [2021-10-13 00:58:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 632 transitions. [2021-10-13 00:58:55,536 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 632 transitions. Word has length 105 [2021-10-13 00:58:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:55,537 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 632 transitions. [2021-10-13 00:58:55,537 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) [2021-10-13 00:58:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 632 transitions. [2021-10-13 00:58:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-13 00:58:55,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:55,539 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:55,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:58:55,540 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:55,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1829390815, now seen corresponding path program 1 times [2021-10-13 00:58:55,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:55,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918230087] [2021-10-13 00:58:55,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:55,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 00:58:55,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:55,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918230087] [2021-10-13 00:58:55,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918230087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:55,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:55,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:55,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734673610] [2021-10-13 00:58:55,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:55,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:55,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:55,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,600 INFO L87 Difference]: Start difference. First operand 463 states and 632 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-10-13 00:58:55,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:55,633 INFO L93 Difference]: Finished difference Result 943 states and 1285 transitions. [2021-10-13 00:58:55,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:55,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 [2021-10-13 00:58:55,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:55,639 INFO L225 Difference]: With dead ends: 943 [2021-10-13 00:58:55,640 INFO L226 Difference]: Without dead ends: 490 [2021-10-13 00:58:55,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-13 00:58:55,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2021-10-13 00:58:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.361963190184049) internal successors, (666), 489 states have internal predecessors, (666), 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) [2021-10-13 00:58:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2021-10-13 00:58:55,663 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 666 transitions. Word has length 105 [2021-10-13 00:58:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:55,664 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-10-13 00:58:55,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-10-13 00:58:55,664 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 666 transitions. [2021-10-13 00:58:55,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-13 00:58:55,667 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:55,668 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:55,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:58:55,668 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:55,669 INFO L82 PathProgramCache]: Analyzing trace with hash -915547054, now seen corresponding path program 1 times [2021-10-13 00:58:55,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:55,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145707222] [2021-10-13 00:58:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:55,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-13 00:58:55,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:55,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145707222] [2021-10-13 00:58:55,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145707222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:55,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:55,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:55,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944686850] [2021-10-13 00:58:55,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:55,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:55,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:55,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,760 INFO L87 Difference]: Start difference. First operand 490 states and 666 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) [2021-10-13 00:58:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:55,803 INFO L93 Difference]: Finished difference Result 708 states and 966 transitions. [2021-10-13 00:58:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:55,804 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 107 [2021-10-13 00:58:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:55,810 INFO L225 Difference]: With dead ends: 708 [2021-10-13 00:58:55,810 INFO L226 Difference]: Without dead ends: 706 [2021-10-13 00:58:55,811 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 [2021-10-13 00:58:55,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-13 00:58:55,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2021-10-13 00:58:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 705 states have (on average 1.3673758865248227) internal successors, (964), 705 states have internal predecessors, (964), 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) [2021-10-13 00:58:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 964 transitions. [2021-10-13 00:58:55,842 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 964 transitions. Word has length 107 [2021-10-13 00:58:55,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:55,842 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 964 transitions. [2021-10-13 00:58:55,843 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) [2021-10-13 00:58:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 964 transitions. [2021-10-13 00:58:55,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-10-13 00:58:55,849 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:55,849 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:55,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:58:55,850 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:55,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1430305885, now seen corresponding path program 1 times [2021-10-13 00:58:55,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:55,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503550365] [2021-10-13 00:58:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:55,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-10-13 00:58:55,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:55,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503550365] [2021-10-13 00:58:55,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503550365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:55,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:55,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:55,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065644165] [2021-10-13 00:58:55,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:55,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:55,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:55,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:55,936 INFO L87 Difference]: Start difference. First operand 706 states and 964 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-10-13 00:58:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:56,128 INFO L93 Difference]: Finished difference Result 1528 states and 2147 transitions. [2021-10-13 00:58:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 147 [2021-10-13 00:58:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:56,135 INFO L225 Difference]: With dead ends: 1528 [2021-10-13 00:58:56,136 INFO L226 Difference]: Without dead ends: 856 [2021-10-13 00:58:56,137 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-10-13 00:58:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 823. [2021-10-13 00:58:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.4026763990267639) internal successors, (1153), 822 states have internal predecessors, (1153), 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) [2021-10-13 00:58:56,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1153 transitions. [2021-10-13 00:58:56,170 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1153 transitions. Word has length 147 [2021-10-13 00:58:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:56,170 INFO L470 AbstractCegarLoop]: Abstraction has 823 states and 1153 transitions. [2021-10-13 00:58:56,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-10-13 00:58:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1153 transitions. [2021-10-13 00:58:56,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-13 00:58:56,174 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:56,175 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:56,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:58:56,175 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:56,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:56,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1346631412, now seen corresponding path program 1 times [2021-10-13 00:58:56,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:56,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639072567] [2021-10-13 00:58:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:56,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:56,274 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 00:58:56,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:56,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639072567] [2021-10-13 00:58:56,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639072567] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:56,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:56,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:56,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607432366] [2021-10-13 00:58:56,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:56,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:56,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:56,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:56,277 INFO L87 Difference]: Start difference. First operand 823 states and 1153 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-10-13 00:58:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:56,421 INFO L93 Difference]: Finished difference Result 1689 states and 2365 transitions. [2021-10-13 00:58:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:56,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 183 [2021-10-13 00:58:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:56,435 INFO L225 Difference]: With dead ends: 1689 [2021-10-13 00:58:56,435 INFO L226 Difference]: Without dead ends: 903 [2021-10-13 00:58:56,437 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2021-10-13 00:58:56,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 892. [2021-10-13 00:58:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 891 states have (on average 1.388327721661055) internal successors, (1237), 891 states have internal predecessors, (1237), 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) [2021-10-13 00:58:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1237 transitions. [2021-10-13 00:58:56,473 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1237 transitions. Word has length 183 [2021-10-13 00:58:56,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:56,475 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 1237 transitions. [2021-10-13 00:58:56,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-10-13 00:58:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1237 transitions. [2021-10-13 00:58:56,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-10-13 00:58:56,479 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:56,480 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:56,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 00:58:56,480 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash 880338370, now seen corresponding path program 1 times [2021-10-13 00:58:56,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:56,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968926804] [2021-10-13 00:58:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:56,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-10-13 00:58:56,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:56,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968926804] [2021-10-13 00:58:56,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968926804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:56,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:56,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:56,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797045171] [2021-10-13 00:58:56,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:56,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:56,554 INFO L87 Difference]: Start difference. First operand 892 states and 1237 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2021-10-13 00:58:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:56,696 INFO L93 Difference]: Finished difference Result 1831 states and 2546 transitions. [2021-10-13 00:58:56,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:56,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 204 [2021-10-13 00:58:56,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:56,704 INFO L225 Difference]: With dead ends: 1831 [2021-10-13 00:58:56,704 INFO L226 Difference]: Without dead ends: 976 [2021-10-13 00:58:56,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2021-10-13 00:58:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 967. [2021-10-13 00:58:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 1.3737060041407867) internal successors, (1327), 966 states have internal predecessors, (1327), 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) [2021-10-13 00:58:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1327 transitions. [2021-10-13 00:58:56,757 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1327 transitions. Word has length 204 [2021-10-13 00:58:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:56,758 INFO L470 AbstractCegarLoop]: Abstraction has 967 states and 1327 transitions. [2021-10-13 00:58:56,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2021-10-13 00:58:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1327 transitions. [2021-10-13 00:58:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-10-13 00:58:56,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:56,764 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:56,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 00:58:56,764 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:56,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:56,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1998340689, now seen corresponding path program 1 times [2021-10-13 00:58:56,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:56,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127012779] [2021-10-13 00:58:56,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:56,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-10-13 00:58:56,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:56,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127012779] [2021-10-13 00:58:56,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127012779] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:56,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:56,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:56,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812012471] [2021-10-13 00:58:56,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:56,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:56,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:56,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:56,868 INFO L87 Difference]: Start difference. First operand 967 states and 1327 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-10-13 00:58:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:57,018 INFO L93 Difference]: Finished difference Result 1987 states and 2735 transitions. [2021-10-13 00:58:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:57,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 228 [2021-10-13 00:58:57,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:57,027 INFO L225 Difference]: With dead ends: 1987 [2021-10-13 00:58:57,027 INFO L226 Difference]: Without dead ends: 1057 [2021-10-13 00:58:57,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2021-10-13 00:58:57,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1051. [2021-10-13 00:58:57,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1050 states have (on average 1.358095238095238) internal successors, (1426), 1050 states have internal predecessors, (1426), 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) [2021-10-13 00:58:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1426 transitions. [2021-10-13 00:58:57,070 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1426 transitions. Word has length 228 [2021-10-13 00:58:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:57,070 INFO L470 AbstractCegarLoop]: Abstraction has 1051 states and 1426 transitions. [2021-10-13 00:58:57,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-10-13 00:58:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1426 transitions. [2021-10-13 00:58:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-10-13 00:58:57,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:57,076 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:57,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 00:58:57,077 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:57,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:57,077 INFO L82 PathProgramCache]: Analyzing trace with hash -967299791, now seen corresponding path program 1 times [2021-10-13 00:58:57,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:57,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976622700] [2021-10-13 00:58:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:57,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:57,158 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-10-13 00:58:57,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:57,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976622700] [2021-10-13 00:58:57,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976622700] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:57,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:57,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:57,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703656360] [2021-10-13 00:58:57,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:57,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:57,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:57,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,161 INFO L87 Difference]: Start difference. First operand 1051 states and 1426 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-10-13 00:58:57,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:57,315 INFO L93 Difference]: Finished difference Result 2167 states and 2960 transitions. [2021-10-13 00:58:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:57,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 228 [2021-10-13 00:58:57,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:57,324 INFO L225 Difference]: With dead ends: 2167 [2021-10-13 00:58:57,324 INFO L226 Difference]: Without dead ends: 1153 [2021-10-13 00:58:57,328 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2021-10-13 00:58:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1144. [2021-10-13 00:58:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 1.342082239720035) internal successors, (1534), 1143 states have internal predecessors, (1534), 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) [2021-10-13 00:58:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1534 transitions. [2021-10-13 00:58:57,387 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1534 transitions. Word has length 228 [2021-10-13 00:58:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:57,387 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1534 transitions. [2021-10-13 00:58:57,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-10-13 00:58:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1534 transitions. [2021-10-13 00:58:57,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-10-13 00:58:57,394 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:57,394 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:57,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 00:58:57,395 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:57,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1465419185, now seen corresponding path program 1 times [2021-10-13 00:58:57,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:57,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579508313] [2021-10-13 00:58:57,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:57,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-10-13 00:58:57,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:57,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579508313] [2021-10-13 00:58:57,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579508313] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:57,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:57,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:57,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730601121] [2021-10-13 00:58:57,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:57,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:57,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:57,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,493 INFO L87 Difference]: Start difference. First operand 1144 states and 1534 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-10-13 00:58:57,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:57,548 INFO L93 Difference]: Finished difference Result 3355 states and 4503 transitions. [2021-10-13 00:58:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:57,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 258 [2021-10-13 00:58:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:57,565 INFO L225 Difference]: With dead ends: 3355 [2021-10-13 00:58:57,565 INFO L226 Difference]: Without dead ends: 2248 [2021-10-13 00:58:57,568 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 [2021-10-13 00:58:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2021-10-13 00:58:57,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2246. [2021-10-13 00:58:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 2245 states have (on average 1.3420935412026727) internal successors, (3013), 2245 states have internal predecessors, (3013), 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) [2021-10-13 00:58:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3013 transitions. [2021-10-13 00:58:57,651 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3013 transitions. Word has length 258 [2021-10-13 00:58:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:57,651 INFO L470 AbstractCegarLoop]: Abstraction has 2246 states and 3013 transitions. [2021-10-13 00:58:57,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-10-13 00:58:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3013 transitions. [2021-10-13 00:58:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-10-13 00:58:57,659 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:57,660 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:57,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 00:58:57,660 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:57,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:57,661 INFO L82 PathProgramCache]: Analyzing trace with hash -434378287, now seen corresponding path program 1 times [2021-10-13 00:58:57,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:57,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783624217] [2021-10-13 00:58:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:57,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-10-13 00:58:57,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:57,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783624217] [2021-10-13 00:58:57,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783624217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:57,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:57,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:57,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773431889] [2021-10-13 00:58:57,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:57,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:57,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:57,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,744 INFO L87 Difference]: Start difference. First operand 2246 states and 3013 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) [2021-10-13 00:58:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:57,956 INFO L93 Difference]: Finished difference Result 4680 states and 6329 transitions. [2021-10-13 00:58:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:57,957 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 258 [2021-10-13 00:58:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:57,974 INFO L225 Difference]: With dead ends: 4680 [2021-10-13 00:58:57,974 INFO L226 Difference]: Without dead ends: 2471 [2021-10-13 00:58:57,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:57,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-10-13 00:58:58,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2459. [2021-10-13 00:58:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2458 states have (on average 1.3246541903986981) internal successors, (3256), 2458 states have internal predecessors, (3256), 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) [2021-10-13 00:58:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3256 transitions. [2021-10-13 00:58:58,073 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3256 transitions. Word has length 258 [2021-10-13 00:58:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:58,074 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 3256 transitions. [2021-10-13 00:58:58,074 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) [2021-10-13 00:58:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3256 transitions. [2021-10-13 00:58:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-13 00:58:58,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:58,084 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:58,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 00:58:58,084 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:58,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1948571271, now seen corresponding path program 1 times [2021-10-13 00:58:58,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:58,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811394797] [2021-10-13 00:58:58,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:58,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-10-13 00:58:58,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:58,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811394797] [2021-10-13 00:58:58,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811394797] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:58,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:58,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:58,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864770725] [2021-10-13 00:58:58,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:58,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:58,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:58,173 INFO L87 Difference]: Start difference. First operand 2459 states and 3256 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2021-10-13 00:58:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:58,390 INFO L93 Difference]: Finished difference Result 4992 states and 6632 transitions. [2021-10-13 00:58:58,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:58,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 [2021-10-13 00:58:58,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:58,409 INFO L225 Difference]: With dead ends: 4992 [2021-10-13 00:58:58,409 INFO L226 Difference]: Without dead ends: 2570 [2021-10-13 00:58:58,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2021-10-13 00:58:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2558. [2021-10-13 00:58:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2557 states have (on average 1.3179507235041064) internal successors, (3370), 2557 states have internal predecessors, (3370), 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) [2021-10-13 00:58:58,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3370 transitions. [2021-10-13 00:58:58,554 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3370 transitions. Word has length 282 [2021-10-13 00:58:58,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:58,555 INFO L470 AbstractCegarLoop]: Abstraction has 2558 states and 3370 transitions. [2021-10-13 00:58:58,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2021-10-13 00:58:58,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3370 transitions. [2021-10-13 00:58:58,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-10-13 00:58:58,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:58,565 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:58,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 00:58:58,565 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:58,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:58,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1124753462, now seen corresponding path program 1 times [2021-10-13 00:58:58,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:58,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521234907] [2021-10-13 00:58:58,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:58,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-10-13 00:58:58,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:58,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521234907] [2021-10-13 00:58:58,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521234907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:58,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:58,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:58,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461845605] [2021-10-13 00:58:58,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:58,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:58,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:58,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:58,659 INFO L87 Difference]: Start difference. First operand 2558 states and 3370 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-10-13 00:58:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:58,910 INFO L93 Difference]: Finished difference Result 5379 states and 7220 transitions. [2021-10-13 00:58:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 293 [2021-10-13 00:58:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:58,931 INFO L225 Difference]: With dead ends: 5379 [2021-10-13 00:58:58,931 INFO L226 Difference]: Without dead ends: 2858 [2021-10-13 00:58:58,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2021-10-13 00:58:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2798. [2021-10-13 00:58:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.305684662138005) internal successors, (3652), 2797 states have internal predecessors, (3652), 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) [2021-10-13 00:58:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3652 transitions. [2021-10-13 00:58:59,091 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3652 transitions. Word has length 293 [2021-10-13 00:58:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:59,092 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3652 transitions. [2021-10-13 00:58:59,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-10-13 00:58:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3652 transitions. [2021-10-13 00:58:59,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-10-13 00:58:59,102 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:59,103 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:58:59,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 00:58:59,103 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:59,104 INFO L82 PathProgramCache]: Analyzing trace with hash 495610836, now seen corresponding path program 1 times [2021-10-13 00:58:59,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:59,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990272386] [2021-10-13 00:58:59,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:59,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 631 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-13 00:58:59,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:59,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990272386] [2021-10-13 00:58:59,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990272386] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:59,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:59,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:59,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601924274] [2021-10-13 00:58:59,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:58:59,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:59,186 INFO L87 Difference]: Start difference. First operand 2798 states and 3652 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-10-13 00:58:59,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:59,405 INFO L93 Difference]: Finished difference Result 5643 states and 7358 transitions. [2021-10-13 00:58:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:59,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 301 [2021-10-13 00:58:59,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:59,426 INFO L225 Difference]: With dead ends: 5643 [2021-10-13 00:58:59,426 INFO L226 Difference]: Without dead ends: 2864 [2021-10-13 00:58:59,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-10-13 00:58:59,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2792. [2021-10-13 00:58:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2791 states have (on average 1.2955929774274453) internal successors, (3616), 2791 states have internal predecessors, (3616), 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) [2021-10-13 00:58:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3616 transitions. [2021-10-13 00:58:59,589 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3616 transitions. Word has length 301 [2021-10-13 00:58:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:59,590 INFO L470 AbstractCegarLoop]: Abstraction has 2792 states and 3616 transitions. [2021-10-13 00:58:59,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2021-10-13 00:58:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3616 transitions. [2021-10-13 00:58:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-10-13 00:58:59,603 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:59,603 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:59,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 00:58:59,604 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:58:59,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:59,605 INFO L82 PathProgramCache]: Analyzing trace with hash -870156213, now seen corresponding path program 1 times [2021-10-13 00:58:59,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:59,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358883839] [2021-10-13 00:58:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:59,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-10-13 00:58:59,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:59,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358883839] [2021-10-13 00:58:59,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358883839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:58:59,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833912511] [2021-10-13 00:58:59,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:59,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:58:59,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:58:59,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:58:59,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:58:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:59,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:58:59,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:59:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-10-13 00:59:01,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833912511] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:01,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:59:01,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 00:59:01,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073352549] [2021-10-13 00:59:01,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:01,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:01,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:01,271 INFO L87 Difference]: Start difference. First operand 2792 states and 3616 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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) [2021-10-13 00:59:01,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:01,723 INFO L93 Difference]: Finished difference Result 8410 states and 10878 transitions. [2021-10-13 00:59:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:59:01,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 332 [2021-10-13 00:59:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:01,787 INFO L225 Difference]: With dead ends: 8410 [2021-10-13 00:59:01,787 INFO L226 Difference]: Without dead ends: 5649 [2021-10-13 00:59:01,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:59:01,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2021-10-13 00:59:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 3680. [2021-10-13 00:59:01,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 1.281870073389508) internal successors, (4716), 3679 states have internal predecessors, (4716), 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) [2021-10-13 00:59:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 4716 transitions. [2021-10-13 00:59:02,021 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 4716 transitions. Word has length 332 [2021-10-13 00:59:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:02,022 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 4716 transitions. [2021-10-13 00:59:02,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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) [2021-10-13 00:59:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 4716 transitions. [2021-10-13 00:59:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-10-13 00:59:02,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:02,037 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:02,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 00:59:02,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:02,261 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash -734234391, now seen corresponding path program 1 times [2021-10-13 00:59:02,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:02,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984668825] [2021-10-13 00:59:02,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:02,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 770 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-10-13 00:59:02,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:02,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984668825] [2021-10-13 00:59:02,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984668825] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:02,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:02,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:02,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736950295] [2021-10-13 00:59:02,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:02,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:02,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:02,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:02,393 INFO L87 Difference]: Start difference. First operand 3680 states and 4716 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2021-10-13 00:59:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:02,509 INFO L93 Difference]: Finished difference Result 9682 states and 12466 transitions. [2021-10-13 00:59:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:02,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 333 [2021-10-13 00:59:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:02,526 INFO L225 Difference]: With dead ends: 9682 [2021-10-13 00:59:02,527 INFO L226 Difference]: Without dead ends: 6039 [2021-10-13 00:59:02,535 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 [2021-10-13 00:59:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2021-10-13 00:59:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 5695. [2021-10-13 00:59:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 5694 states have (on average 1.2867931155602388) internal successors, (7327), 5694 states have internal predecessors, (7327), 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) [2021-10-13 00:59:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 7327 transitions. [2021-10-13 00:59:02,802 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 7327 transitions. Word has length 333 [2021-10-13 00:59:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:02,803 INFO L470 AbstractCegarLoop]: Abstraction has 5695 states and 7327 transitions. [2021-10-13 00:59:02,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2021-10-13 00:59:02,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 7327 transitions. [2021-10-13 00:59:02,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-10-13 00:59:02,820 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:02,820 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:59:02,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 00:59:02,821 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1600541490, now seen corresponding path program 1 times [2021-10-13 00:59:02,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:02,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411139075] [2021-10-13 00:59:02,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:02,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-13 00:59:02,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:02,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411139075] [2021-10-13 00:59:02,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411139075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:02,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:02,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:02,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957062493] [2021-10-13 00:59:02,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:02,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:02,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:02,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:02,932 INFO L87 Difference]: Start difference. First operand 5695 states and 7327 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-10-13 00:59:03,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:03,228 INFO L93 Difference]: Finished difference Result 11959 states and 15320 transitions. [2021-10-13 00:59:03,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:03,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 338 [2021-10-13 00:59:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:03,246 INFO L225 Difference]: With dead ends: 11959 [2021-10-13 00:59:03,247 INFO L226 Difference]: Without dead ends: 6301 [2021-10-13 00:59:03,256 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 [2021-10-13 00:59:03,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2021-10-13 00:59:03,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 5869. [2021-10-13 00:59:03,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5869 states, 5868 states have (on average 1.2885139740967961) internal successors, (7561), 5868 states have internal predecessors, (7561), 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) [2021-10-13 00:59:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 7561 transitions. [2021-10-13 00:59:03,537 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 7561 transitions. Word has length 338 [2021-10-13 00:59:03,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:03,538 INFO L470 AbstractCegarLoop]: Abstraction has 5869 states and 7561 transitions. [2021-10-13 00:59:03,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-10-13 00:59:03,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 7561 transitions. [2021-10-13 00:59:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-10-13 00:59:03,556 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:03,557 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:59:03,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 00:59:03,558 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:03,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:03,562 INFO L82 PathProgramCache]: Analyzing trace with hash 296800678, now seen corresponding path program 1 times [2021-10-13 00:59:03,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:03,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475869507] [2021-10-13 00:59:03,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:03,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-13 00:59:03,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:03,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475869507] [2021-10-13 00:59:03,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475869507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:03,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757558196] [2021-10-13 00:59:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:03,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:59:03,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:59:03,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:59:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:04,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:59:04,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:59:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-13 00:59:05,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757558196] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:05,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:59:05,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 00:59:05,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449019276] [2021-10-13 00:59:05,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:05,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:05,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:05,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:05,347 INFO L87 Difference]: Start difference. First operand 5869 states and 7561 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2021-10-13 00:59:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:05,755 INFO L93 Difference]: Finished difference Result 13204 states and 16946 transitions. [2021-10-13 00:59:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 376 [2021-10-13 00:59:05,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:05,775 INFO L225 Difference]: With dead ends: 13204 [2021-10-13 00:59:05,776 INFO L226 Difference]: Without dead ends: 7359 [2021-10-13 00:59:05,786 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:59:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2021-10-13 00:59:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 5989. [2021-10-13 00:59:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5989 states, 5988 states have (on average 1.2762191048764195) internal successors, (7642), 5988 states have internal predecessors, (7642), 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) [2021-10-13 00:59:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 7642 transitions. [2021-10-13 00:59:06,053 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 7642 transitions. Word has length 376 [2021-10-13 00:59:06,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:06,054 INFO L470 AbstractCegarLoop]: Abstraction has 5989 states and 7642 transitions. [2021-10-13 00:59:06,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2021-10-13 00:59:06,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 7642 transitions. [2021-10-13 00:59:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-10-13 00:59:06,067 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:06,068 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:06,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:59:06,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:06,293 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:06,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2142183135, now seen corresponding path program 1 times [2021-10-13 00:59:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:06,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188028156] [2021-10-13 00:59:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:06,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-10-13 00:59:06,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:06,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188028156] [2021-10-13 00:59:06,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188028156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:59:06,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:59:06,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:59:06,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044274716] [2021-10-13 00:59:06,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:59:06,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:59:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:06,408 INFO L87 Difference]: Start difference. First operand 5989 states and 7642 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 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) [2021-10-13 00:59:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:06,686 INFO L93 Difference]: Finished difference Result 11539 states and 14488 transitions. [2021-10-13 00:59:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:59:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 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 415 [2021-10-13 00:59:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:06,697 INFO L225 Difference]: With dead ends: 11539 [2021-10-13 00:59:06,697 INFO L226 Difference]: Without dead ends: 3293 [2021-10-13 00:59:06,707 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:59:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-10-13 00:59:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3227. [2021-10-13 00:59:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3226 states have (on average 1.2625542467451953) internal successors, (4073), 3226 states have internal predecessors, (4073), 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) [2021-10-13 00:59:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4073 transitions. [2021-10-13 00:59:06,828 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4073 transitions. Word has length 415 [2021-10-13 00:59:06,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:06,828 INFO L470 AbstractCegarLoop]: Abstraction has 3227 states and 4073 transitions. [2021-10-13 00:59:06,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 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) [2021-10-13 00:59:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4073 transitions. [2021-10-13 00:59:06,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2021-10-13 00:59:06,839 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:59:06,841 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:59:06,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 00:59:06,841 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:59:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:59:06,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2025530628, now seen corresponding path program 1 times [2021-10-13 00:59:06,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:59:06,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143417436] [2021-10-13 00:59:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:06,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:59:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-10-13 00:59:06,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:59:06,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143417436] [2021-10-13 00:59:06,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143417436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:06,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301194999] [2021-10-13 00:59:06,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:59:06,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:59:06,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:59:06,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:59:07,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:59:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:59:07,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:59:07,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:59:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-10-13 00:59:08,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301194999] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:59:08,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:59:08,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 00:59:08,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266162665] [2021-10-13 00:59:08,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:59:08,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:59:08,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:59:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:59:08,650 INFO L87 Difference]: Start difference. First operand 3227 states and 4073 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2021-10-13 00:59:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:59:08,868 INFO L93 Difference]: Finished difference Result 3861 states and 4882 transitions. [2021-10-13 00:59:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:59:08,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 482 [2021-10-13 00:59:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:59:08,870 INFO L225 Difference]: With dead ends: 3861 [2021-10-13 00:59:08,870 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:59:08,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:59:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:59:08,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:59:08,875 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) [2021-10-13 00:59:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:59:08,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 482 [2021-10-13 00:59:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:59:08,877 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:59:08,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2021-10-13 00:59:08,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:59:08,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:59:08,881 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:59:08,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:59:09,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-13 00:59:09,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:59:09,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:09,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:59:10,686 INFO L857 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-10-13 00:59:10,686 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 269) no Hoare annotation was computed. [2021-10-13 00:59:10,686 INFO L857 garLoopResultBuilder]: For program point L267-2(lines 203 486) no Hoare annotation was computed. [2021-10-13 00:59:10,686 INFO L857 garLoopResultBuilder]: For program point L433(lines 433 435) no Hoare annotation was computed. [2021-10-13 00:59:10,687 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 336) no Hoare annotation was computed. [2021-10-13 00:59:10,687 INFO L860 garLoopResultBuilder]: At program point L202(lines 201 489) the Hoare annotation is: true [2021-10-13 00:59:10,687 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 499) no Hoare annotation was computed. [2021-10-13 00:59:10,687 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 510) no Hoare annotation was computed. [2021-10-13 00:59:10,687 INFO L857 garLoopResultBuilder]: For program point L103(lines 103 521) no Hoare annotation was computed. [2021-10-13 00:59:10,687 INFO L853 garLoopResultBuilder]: At program point L170(lines 166 500) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-10-13 00:59:10,688 INFO L853 garLoopResultBuilder]: At program point L104(lines 103 521) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-10-13 00:59:10,688 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-10-13 00:59:10,688 INFO L857 garLoopResultBuilder]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2021-10-13 00:59:10,688 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2021-10-13 00:59:10,688 INFO L857 garLoopResultBuilder]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2021-10-13 00:59:10,689 INFO L857 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2021-10-13 00:59:10,690 INFO L857 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2021-10-13 00:59:10,690 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 498) no Hoare annotation was computed. [2021-10-13 00:59:10,691 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 509) no Hoare annotation was computed. [2021-10-13 00:59:10,691 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 520) no Hoare annotation was computed. [2021-10-13 00:59:10,691 INFO L853 garLoopResultBuilder]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-10-13 00:59:10,692 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 308) no Hoare annotation was computed. [2021-10-13 00:59:10,694 INFO L857 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2021-10-13 00:59:10,694 INFO L857 garLoopResultBuilder]: For program point L240(lines 240 243) no Hoare annotation was computed. [2021-10-13 00:59:10,694 INFO L857 garLoopResultBuilder]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2021-10-13 00:59:10,694 INFO L857 garLoopResultBuilder]: For program point L273-2(lines 273 277) no Hoare annotation was computed. [2021-10-13 00:59:10,695 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 408) no Hoare annotation was computed. [2021-10-13 00:59:10,695 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 375) no Hoare annotation was computed. [2021-10-13 00:59:10,695 INFO L853 garLoopResultBuilder]: At program point L208(lines 106 520) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-10-13 00:59:10,695 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 497) no Hoare annotation was computed. [2021-10-13 00:59:10,695 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 508) no Hoare annotation was computed. [2021-10-13 00:59:10,696 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 519) no Hoare annotation was computed. [2021-10-13 00:59:10,696 INFO L853 garLoopResultBuilder]: At program point L176(lines 172 498) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-10-13 00:59:10,697 INFO L857 garLoopResultBuilder]: For program point L474(lines 474 476) no Hoare annotation was computed. [2021-10-13 00:59:10,697 INFO L857 garLoopResultBuilder]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2021-10-13 00:59:10,697 INFO L860 garLoopResultBuilder]: At program point L541(lines 99 542) the Hoare annotation is: true [2021-10-13 00:59:10,698 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 496) no Hoare annotation was computed. [2021-10-13 00:59:10,698 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 507) no Hoare annotation was computed. [2021-10-13 00:59:10,698 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 518) no Hoare annotation was computed. [2021-10-13 00:59:10,698 INFO L853 garLoopResultBuilder]: At program point L146(lines 142 508) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-10-13 00:59:10,698 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2021-10-13 00:59:10,699 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2021-10-13 00:59:10,699 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 495) no Hoare annotation was computed. [2021-10-13 00:59:10,699 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 506) no Hoare annotation was computed. [2021-10-13 00:59:10,699 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 517) no Hoare annotation was computed. [2021-10-13 00:59:10,699 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 481) no Hoare annotation was computed. [2021-10-13 00:59:10,700 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 457) no Hoare annotation was computed. [2021-10-13 00:59:10,700 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 427) no Hoare annotation was computed. [2021-10-13 00:59:10,700 INFO L857 garLoopResultBuilder]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2021-10-13 00:59:10,700 INFO L857 garLoopResultBuilder]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2021-10-13 00:59:10,700 INFO L857 garLoopResultBuilder]: For program point L314(lines 314 317) no Hoare annotation was computed. [2021-10-13 00:59:10,702 INFO L853 garLoopResultBuilder]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-10-13 00:59:10,702 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 548) no Hoare annotation was computed. [2021-10-13 00:59:10,702 INFO L857 garLoopResultBuilder]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2021-10-13 00:59:10,702 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 351) no Hoare annotation was computed. [2021-10-13 00:59:10,703 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 494) no Hoare annotation was computed. [2021-10-13 00:59:10,703 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 505) no Hoare annotation was computed. [2021-10-13 00:59:10,703 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 516) no Hoare annotation was computed. [2021-10-13 00:59:10,703 INFO L857 garLoopResultBuilder]: For program point L383(lines 383 385) no Hoare annotation was computed. [2021-10-13 00:59:10,703 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:59:10,704 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 298) no Hoare annotation was computed. [2021-10-13 00:59:10,704 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 221) no Hoare annotation was computed. [2021-10-13 00:59:10,704 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 284 298) no Hoare annotation was computed. [2021-10-13 00:59:10,704 INFO L853 garLoopResultBuilder]: At program point L152(lines 148 506) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-10-13 00:59:10,704 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 92) no Hoare annotation was computed. [2021-10-13 00:59:10,705 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-13 00:59:10,705 INFO L857 garLoopResultBuilder]: For program point L252(lines 252 254) no Hoare annotation was computed. [2021-10-13 00:59:10,705 INFO L857 garLoopResultBuilder]: For program point L252-2(lines 203 486) no Hoare annotation was computed. [2021-10-13 00:59:10,705 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 454) no Hoare annotation was computed. [2021-10-13 00:59:10,705 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 493) no Hoare annotation was computed. [2021-10-13 00:59:10,706 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 504) no Hoare annotation was computed. [2021-10-13 00:59:10,706 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 515) no Hoare annotation was computed. [2021-10-13 00:59:10,706 INFO L860 garLoopResultBuilder]: At program point L551(lines 12 553) the Hoare annotation is: true [2021-10-13 00:59:10,706 INFO L853 garLoopResultBuilder]: At program point L188(lines 184 494) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2021-10-13 00:59:10,707 INFO L853 garLoopResultBuilder]: At program point L122(lines 118 516) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-10-13 00:59:10,707 INFO L857 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2021-10-13 00:59:10,707 INFO L857 garLoopResultBuilder]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2021-10-13 00:59:10,707 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 294) no Hoare annotation was computed. [2021-10-13 00:59:10,708 INFO L853 garLoopResultBuilder]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse6 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse7 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse3 .cse4 .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2 .cse5) (and .cse0 .cse1 .cse6 .cse7 .cse5) (and .cse8 .cse5 .cse9 .cse10) (and .cse2 .cse5 .cse11) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse5 .cse9) (and .cse7 .cse11) (and .cse3 .cse4 .cse6 .cse7 .cse5) (and .cse2 .cse8 .cse10))) [2021-10-13 00:59:10,708 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 324) no Hoare annotation was computed. [2021-10-13 00:59:10,709 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:59:10,709 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 492) no Hoare annotation was computed. [2021-10-13 00:59:10,709 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 503) no Hoare annotation was computed. [2021-10-13 00:59:10,709 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 514) no Hoare annotation was computed. [2021-10-13 00:59:10,710 INFO L857 garLoopResultBuilder]: For program point L389(lines 389 393) no Hoare annotation was computed. [2021-10-13 00:59:10,710 INFO L853 garLoopResultBuilder]: At program point L323(lines 77 552) the Hoare annotation is: false [2021-10-13 00:59:10,710 INFO L857 garLoopResultBuilder]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2021-10-13 00:59:10,711 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 235) no Hoare annotation was computed. [2021-10-13 00:59:10,711 INFO L857 garLoopResultBuilder]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2021-10-13 00:59:10,711 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 538) no Hoare annotation was computed. [2021-10-13 00:59:10,711 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 293) no Hoare annotation was computed. [2021-10-13 00:59:10,712 INFO L857 garLoopResultBuilder]: For program point L291-2(lines 286 298) no Hoare annotation was computed. [2021-10-13 00:59:10,712 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 537) no Hoare annotation was computed. [2021-10-13 00:59:10,712 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 360) no Hoare annotation was computed. [2021-10-13 00:59:10,712 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 327) no Hoare annotation was computed. [2021-10-13 00:59:10,712 INFO L857 garLoopResultBuilder]: For program point L226(lines 226 229) no Hoare annotation was computed. [2021-10-13 00:59:10,713 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 491) no Hoare annotation was computed. [2021-10-13 00:59:10,713 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 502) no Hoare annotation was computed. [2021-10-13 00:59:10,713 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 513) no Hoare annotation was computed. [2021-10-13 00:59:10,713 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 98) no Hoare annotation was computed. [2021-10-13 00:59:10,713 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:59:10,713 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 529) no Hoare annotation was computed. [2021-10-13 00:59:10,714 INFO L857 garLoopResultBuilder]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2021-10-13 00:59:10,714 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 262) no Hoare annotation was computed. [2021-10-13 00:59:10,714 INFO L853 garLoopResultBuilder]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-10-13 00:59:10,714 INFO L853 garLoopResultBuilder]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-10-13 00:59:10,715 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2021-10-13 00:59:10,715 INFO L857 garLoopResultBuilder]: For program point L526(lines 526 528) no Hoare annotation was computed. [2021-10-13 00:59:10,715 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 490) no Hoare annotation was computed. [2021-10-13 00:59:10,715 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 501) no Hoare annotation was computed. [2021-10-13 00:59:10,715 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 512) no Hoare annotation was computed. [2021-10-13 00:59:10,715 INFO L857 garLoopResultBuilder]: For program point L362(lines 362 367) no Hoare annotation was computed. [2021-10-13 00:59:10,716 INFO L857 garLoopResultBuilder]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2021-10-13 00:59:10,716 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 233) no Hoare annotation was computed. [2021-10-13 00:59:10,716 INFO L853 garLoopResultBuilder]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-10-13 00:59:10,716 INFO L853 garLoopResultBuilder]: At program point L164(lines 154 504) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-10-13 00:59:10,716 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:59:10,717 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 550) no Hoare annotation was computed. [2021-10-13 00:59:10,717 INFO L857 garLoopResultBuilder]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2021-10-13 00:59:10,717 INFO L860 garLoopResultBuilder]: At program point L562(lines 554 564) the Hoare annotation is: true [2021-10-13 00:59:10,717 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 489) no Hoare annotation was computed. [2021-10-13 00:59:10,717 INFO L857 garLoopResultBuilder]: For program point L166(lines 166 500) no Hoare annotation was computed. [2021-10-13 00:59:10,718 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 511) no Hoare annotation was computed. [2021-10-13 00:59:10,718 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2021-10-13 00:59:10,718 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 401) no Hoare annotation was computed. [2021-10-13 00:59:10,718 INFO L860 garLoopResultBuilder]: At program point L200(lines 199 489) the Hoare annotation is: true [2021-10-13 00:59:10,718 INFO L853 garLoopResultBuilder]: At program point L134(lines 130 512) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) [2021-10-13 00:59:10,719 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 00:59:10,724 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:59:10,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:59:10 BoogieIcfgContainer [2021-10-13 00:59:10,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:59:10,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:59:10,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:59:10,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:59:10,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:52" (3/4) ... [2021-10-13 00:59:10,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:59:10,808 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 00:59:10,809 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:59:10,811 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:59:10,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:59:10,984 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:59:10,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:59:10,991 INFO L168 Benchmark]: Toolchain (without parser) took 20061.76 ms. Allocated memory was 83.9 MB in the beginning and 413.1 MB in the end (delta: 329.3 MB). Free memory was 49.9 MB in the beginning and 223.9 MB in the end (delta: -174.0 MB). Peak memory consumption was 155.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,992 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 56.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:59:10,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.49 ms. Allocated memory is still 83.9 MB. Free memory was 49.7 MB in the beginning and 57.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.96 ms. Allocated memory is still 83.9 MB. Free memory was 57.1 MB in the beginning and 54.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,994 INFO L168 Benchmark]: Boogie Preprocessor took 84.57 ms. Allocated memory is still 83.9 MB. Free memory was 54.6 MB in the beginning and 52.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,994 INFO L168 Benchmark]: RCFGBuilder took 969.14 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 52.5 MB in the beginning and 83.1 MB in the end (delta: -30.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,995 INFO L168 Benchmark]: TraceAbstraction took 18196.84 ms. Allocated memory was 111.1 MB in the beginning and 413.1 MB in the end (delta: 302.0 MB). Free memory was 83.1 MB in the beginning and 233.4 MB in the end (delta: -150.3 MB). Peak memory consumption was 258.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,995 INFO L168 Benchmark]: Witness Printer took 227.48 ms. Allocated memory is still 413.1 MB. Free memory was 233.4 MB in the beginning and 223.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:59:10,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 56.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 466.49 ms. Allocated memory is still 83.9 MB. Free memory was 49.7 MB in the beginning and 57.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.96 ms. Allocated memory is still 83.9 MB. Free memory was 57.1 MB in the beginning and 54.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.57 ms. Allocated memory is still 83.9 MB. Free memory was 54.6 MB in the beginning and 52.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 969.14 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 52.5 MB in the beginning and 83.1 MB in the end (delta: -30.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18196.84 ms. Allocated memory was 111.1 MB in the beginning and 413.1 MB in the end (delta: 302.0 MB). Free memory was 83.1 MB in the beginning and 233.4 MB in the end (delta: -150.3 MB). Peak memory consumption was 258.7 MB. Max. memory is 16.1 GB. * Witness Printer took 227.48 ms. Allocated memory is still 413.1 MB. Free memory was 233.4 MB in the beginning and 223.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 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: 550]: 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, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18079.5ms, OverallIterations: 26, TraceHistogramMax: 18, EmptinessCheckTime: 197.6ms, AutomataDifference: 5305.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1576.9ms, InitialAbstractionConstructionTime: 19.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4934 SDtfs, 1570 SDslu, 2831 SDs, 0 SdLazy, 2491 SolverSat, 457 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2552.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1274 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5989occurred in iteration=24, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2273.9ms AutomataMinimizationTime, 26 MinimizatonAttempts, 4432 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 177 NumberOfFragments, 434 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9786 FormulaSimplificationTreeSizeReduction, 637.8ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 1289 FormulaSimplificationTreeSizeReductionInter, 921.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 279.5ms SsaConstructionTime, 1059.6ms SatisfiabilityAnalysisTime, 5410.4ms InterpolantComputationTime, 6603 NumberOfCodeBlocks, 6603 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 6574 ConstructedInterpolants, 0 QuantifiedInterpolants, 8392 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2139 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 23541/23607 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: 154]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((4352 <= s__state && blastFlag == 2) && s__hit == 0) && s__state <= 4528 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 1) && s__state <= 4528 - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((4352 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3) || ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((((((((((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3) || (s__state == 4384 && blastFlag == 1)) || ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2)) || (blastFlag == 0 && s__state == 4368)) || ((4400 == s__state && blastFlag == 2) && s__hit == 0)) || ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528)) || ((blastFlag == 2 && s__hit == 0) && s__state <= 3)) || ((s__state == 4416 && s__hit == 0) && blastFlag <= 4)) || (s__s3__tmp__next_state___0 <= 4560 && s__state <= 3)) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state <= 4528 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((s__state <= 4560 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4)) || ((s__state <= 4560 && blastFlag == 2) && 4432 <= s__state) - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:59:11,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fcad3f7-0593-418e-8190-fdcf52e0fbdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...