./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31e424f0a19602624578aeece52fe4be50ad88249810eab23927cd03c7e10f18 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:28:04,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:28:04,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:28:05,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:28:05,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:28:05,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:28:05,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:28:05,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:28:05,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:28:05,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:28:05,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:28:05,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:28:05,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:28:05,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:28:05,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:28:05,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:28:05,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:28:05,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:28:05,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:28:05,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:28:05,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:28:05,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:28:05,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:28:05,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:28:05,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:28:05,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:28:05,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:28:05,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:28:05,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:28:05,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:28:05,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:28:05,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:28:05,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:28:05,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:28:05,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:28:05,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:28:05,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:28:05,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:28:05,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:28:05,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:28:05,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:28:05,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:28:05,137 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:28:05,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:28:05,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:28:05,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:28:05,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:28:05,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:28:05,140 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:28:05,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:28:05,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:28:05,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:28:05,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:28:05,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:28:05,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:28:05,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:28:05,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:28:05,143 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:28:05,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:28:05,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:28:05,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:28:05,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:28:05,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:28:05,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:28:05,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:28:05,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:28:05,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:28:05,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:28:05,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:28:05,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:28:05,146 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:28:05,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:28:05,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:28:05,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:28:05,147 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_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31e424f0a19602624578aeece52fe4be50ad88249810eab23927cd03c7e10f18 [2021-10-21 19:28:05,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:28:05,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:28:05,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:28:05,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:28:05,437 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:28:05,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2021-10-21 19:28:05,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/data/9e11561e4/d1d0f1f27705406787402edfb7f672d7/FLAG1446b6837 [2021-10-21 19:28:05,991 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:28:05,992 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2021-10-21 19:28:06,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/data/9e11561e4/d1d0f1f27705406787402edfb7f672d7/FLAG1446b6837 [2021-10-21 19:28:06,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/data/9e11561e4/d1d0f1f27705406787402edfb7f672d7 [2021-10-21 19:28:06,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:28:06,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:28:06,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:28:06,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:28:06,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:28:06,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4561f16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06, skipping insertion in model container [2021-10-21 19:28:06,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:28:06,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:28:06,665 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_3c5474a6-c5df-4142-a7f8-54d7123873b2/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c[37543,37556] [2021-10-21 19:28:06,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:28:06,681 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:28:06,745 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_3c5474a6-c5df-4142-a7f8-54d7123873b2/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c[37543,37556] [2021-10-21 19:28:06,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:28:06,761 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:28:06,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06 WrapperNode [2021-10-21 19:28:06,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:28:06,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:28:06,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:28:06,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:28:06,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:28:06,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:28:06,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:28:06,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:28:06,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:28:06,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:28:06,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:28:06,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:28:06,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (1/1) ... [2021-10-21 19:28:06,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:28:06,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:06,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:28:06,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:28:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:28:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:28:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:28:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:28:07,123 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:28:07,737 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-21 19:28:07,738 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-21 19:28:07,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:28:07,748 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:28:07,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:28:07 BoogieIcfgContainer [2021-10-21 19:28:07,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:28:07,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:28:07,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:28:07,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:28:07,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:28:06" (1/3) ... [2021-10-21 19:28:07,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633fb734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:28:07, skipping insertion in model container [2021-10-21 19:28:07,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:28:06" (2/3) ... [2021-10-21 19:28:07,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633fb734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:28:07, skipping insertion in model container [2021-10-21 19:28:07,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:28:07" (3/3) ... [2021-10-21 19:28:07,760 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2021-10-21 19:28:07,765 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:28:07,766 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:28:07,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:28:07,820 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:28:07,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:28:07,841 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) [2021-10-21 19:28:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:28:07,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:07,849 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] [2021-10-21 19:28:07,849 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:07,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:07,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-10-21 19:28:07,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:07,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516899640] [2021-10-21 19:28:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:07,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:28:08,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:08,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516899640] [2021-10-21 19:28:08,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516899640] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:08,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:08,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:08,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056678188] [2021-10-21 19:28:08,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:08,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:08,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:08,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:08,090 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) [2021-10-21 19:28:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:08,245 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-10-21 19:28:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:08,247 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 [2021-10-21 19:28:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:08,259 INFO L225 Difference]: With dead ends: 252 [2021-10-21 19:28:08,259 INFO L226 Difference]: Without dead ends: 115 [2021-10-21 19:28:08,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-21 19:28:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-21 19:28:08,305 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) [2021-10-21 19:28:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-10-21 19:28:08,313 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-10-21 19:28:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:08,313 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-10-21 19:28:08,314 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) [2021-10-21 19:28:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-10-21 19:28:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-21 19:28:08,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:08,316 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] [2021-10-21 19:28:08,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:28:08,317 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:08,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:08,317 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-10-21 19:28:08,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:08,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261632647] [2021-10-21 19:28:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:08,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:08,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:28:08,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:08,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261632647] [2021-10-21 19:28:08,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261632647] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:08,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:08,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:08,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947139270] [2021-10-21 19:28:08,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:08,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:08,458 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) [2021-10-21 19:28:08,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:08,584 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2021-10-21 19:28:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:08,585 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 [2021-10-21 19:28:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:08,591 INFO L225 Difference]: With dead ends: 238 [2021-10-21 19:28:08,592 INFO L226 Difference]: Without dead ends: 133 [2021-10-21 19:28:08,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-21 19:28:08,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-10-21 19:28:08,626 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) [2021-10-21 19:28:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-10-21 19:28:08,634 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-10-21 19:28:08,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:08,635 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-10-21 19:28:08,636 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) [2021-10-21 19:28:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-10-21 19:28:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 19:28:08,638 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:08,638 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] [2021-10-21 19:28:08,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:28:08,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:08,639 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2021-10-21 19:28:08,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:08,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051314668] [2021-10-21 19:28:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:08,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-21 19:28:08,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:08,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051314668] [2021-10-21 19:28:08,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051314668] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:08,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:08,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:08,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074355307] [2021-10-21 19:28:08,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:08,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:08,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:08,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:08,761 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) [2021-10-21 19:28:08,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:08,907 INFO L93 Difference]: Finished difference Result 272 states and 408 transitions. [2021-10-21 19:28:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:08,908 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 [2021-10-21 19:28:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:08,910 INFO L225 Difference]: With dead ends: 272 [2021-10-21 19:28:08,910 INFO L226 Difference]: Without dead ends: 152 [2021-10-21 19:28:08,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-21 19:28:08,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-10-21 19:28:08,921 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) [2021-10-21 19:28:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-10-21 19:28:08,922 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-10-21 19:28:08,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:08,923 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-10-21 19:28:08,923 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) [2021-10-21 19:28:08,923 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-10-21 19:28:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-21 19:28:08,926 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:08,926 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] [2021-10-21 19:28:08,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:28:08,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:08,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:08,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1238030766, now seen corresponding path program 1 times [2021-10-21 19:28:08,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:08,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050237563] [2021-10-21 19:28:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:08,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-21 19:28:09,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:09,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050237563] [2021-10-21 19:28:09,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050237563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:09,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:09,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:09,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149331351] [2021-10-21 19:28:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:09,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,020 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) [2021-10-21 19:28:09,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:09,181 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2021-10-21 19:28:09,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:09,182 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 [2021-10-21 19:28:09,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:09,185 INFO L225 Difference]: With dead ends: 335 [2021-10-21 19:28:09,185 INFO L226 Difference]: Without dead ends: 197 [2021-10-21 19:28:09,186 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-21 19:28:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2021-10-21 19:28:09,199 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) [2021-10-21 19:28:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2021-10-21 19:28:09,200 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2021-10-21 19:28:09,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:09,201 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2021-10-21 19:28:09,201 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) [2021-10-21 19:28:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2021-10-21 19:28:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-21 19:28:09,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:09,205 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] [2021-10-21 19:28:09,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:28:09,205 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:09,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1251498196, now seen corresponding path program 1 times [2021-10-21 19:28:09,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:09,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150815983] [2021-10-21 19:28:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:09,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-21 19:28:09,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:09,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150815983] [2021-10-21 19:28:09,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150815983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:09,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:09,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:09,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499395659] [2021-10-21 19:28:09,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:09,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:09,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:09,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,346 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) [2021-10-21 19:28:09,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:09,466 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2021-10-21 19:28:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:09,466 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 [2021-10-21 19:28:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:09,468 INFO L225 Difference]: With dead ends: 390 [2021-10-21 19:28:09,468 INFO L226 Difference]: Without dead ends: 212 [2021-10-21 19:28:09,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-21 19:28:09,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2021-10-21 19:28:09,491 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) [2021-10-21 19:28:09,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-10-21 19:28:09,492 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2021-10-21 19:28:09,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:09,493 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-10-21 19:28:09,493 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) [2021-10-21 19:28:09,493 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-10-21 19:28:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-21 19:28:09,496 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:09,496 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] [2021-10-21 19:28:09,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:28:09,497 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:09,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:09,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1821092144, now seen corresponding path program 1 times [2021-10-21 19:28:09,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:09,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125346092] [2021-10-21 19:28:09,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:09,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-21 19:28:09,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:09,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125346092] [2021-10-21 19:28:09,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125346092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:09,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:09,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:09,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773682373] [2021-10-21 19:28:09,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:09,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:09,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,625 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) [2021-10-21 19:28:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:09,749 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2021-10-21 19:28:09,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:09,755 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 [2021-10-21 19:28:09,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:09,760 INFO L225 Difference]: With dead ends: 428 [2021-10-21 19:28:09,760 INFO L226 Difference]: Without dead ends: 231 [2021-10-21 19:28:09,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-21 19:28:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2021-10-21 19:28:09,773 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) [2021-10-21 19:28:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-10-21 19:28:09,775 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2021-10-21 19:28:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:09,776 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-10-21 19:28:09,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:09,777 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2021-10-21 19:28:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-21 19:28:09,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:09,787 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] [2021-10-21 19:28:09,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:28:09,787 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:09,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:09,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1901861672, now seen corresponding path program 1 times [2021-10-21 19:28:09,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:09,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591718707] [2021-10-21 19:28:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:09,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-21 19:28:09,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:09,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591718707] [2021-10-21 19:28:09,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591718707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:09,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:09,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:09,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321680047] [2021-10-21 19:28:09,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:09,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:09,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,900 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) [2021-10-21 19:28:09,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:09,931 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2021-10-21 19:28:09,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:09,932 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 [2021-10-21 19:28:09,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:09,935 INFO L225 Difference]: With dead ends: 661 [2021-10-21 19:28:09,935 INFO L226 Difference]: Without dead ends: 443 [2021-10-21 19:28:09,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-10-21 19:28:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-10-21 19:28:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.3710407239819005) internal successors, (606), 442 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2021-10-21 19:28:09,951 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2021-10-21 19:28:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:09,952 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2021-10-21 19:28:09,952 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) [2021-10-21 19:28:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2021-10-21 19:28:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-21 19:28:09,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:09,954 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] [2021-10-21 19:28:09,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:28:09,954 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:09,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:09,955 INFO L82 PathProgramCache]: Analyzing trace with hash 837467901, now seen corresponding path program 1 times [2021-10-21 19:28:09,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:09,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908004329] [2021-10-21 19:28:09,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:09,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-21 19:28:09,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:09,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908004329] [2021-10-21 19:28:09,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908004329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:09,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:09,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:09,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410348978] [2021-10-21 19:28:09,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:09,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:09,997 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:10,020 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2021-10-21 19:28:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-10-21 19:28:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:10,024 INFO L225 Difference]: With dead ends: 897 [2021-10-21 19:28:10,024 INFO L226 Difference]: Without dead ends: 464 [2021-10-21 19:28:10,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-10-21 19:28:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2021-10-21 19:28:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.367170626349892) internal successors, (633), 463 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2021-10-21 19:28:10,040 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 106 [2021-10-21 19:28:10,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:10,041 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2021-10-21 19:28:10,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2021-10-21 19:28:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-21 19:28:10,043 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:10,043 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] [2021-10-21 19:28:10,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:28:10,044 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:10,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:10,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1077707647, now seen corresponding path program 1 times [2021-10-21 19:28:10,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:10,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082309976] [2021-10-21 19:28:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:10,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-21 19:28:10,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:10,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082309976] [2021-10-21 19:28:10,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082309976] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:10,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:10,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:10,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395092431] [2021-10-21 19:28:10,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:10,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:10,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:10,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,083 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:10,111 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2021-10-21 19:28:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-10-21 19:28:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:10,116 INFO L225 Difference]: With dead ends: 945 [2021-10-21 19:28:10,118 INFO L226 Difference]: Without dead ends: 491 [2021-10-21 19:28:10,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-10-21 19:28:10,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-10-21 19:28:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.3612244897959183) internal successors, (667), 490 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2021-10-21 19:28:10,134 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2021-10-21 19:28:10,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:10,135 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2021-10-21 19:28:10,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2021-10-21 19:28:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-21 19:28:10,137 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:10,137 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] [2021-10-21 19:28:10,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:28:10,137 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:10,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2015927886, now seen corresponding path program 1 times [2021-10-21 19:28:10,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:10,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190885450] [2021-10-21 19:28:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:10,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-21 19:28:10,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:10,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190885450] [2021-10-21 19:28:10,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190885450] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:10,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:10,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:10,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312071077] [2021-10-21 19:28:10,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:10,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:10,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:10,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,201 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:10,234 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2021-10-21 19:28:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:10,235 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 [2021-10-21 19:28:10,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:10,240 INFO L225 Difference]: With dead ends: 709 [2021-10-21 19:28:10,240 INFO L226 Difference]: Without dead ends: 707 [2021-10-21 19:28:10,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-10-21 19:28:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2021-10-21 19:28:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.36685552407932) internal successors, (965), 706 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2021-10-21 19:28:10,270 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2021-10-21 19:28:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:10,271 INFO L470 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2021-10-21 19:28:10,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2021-10-21 19:28:10,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-10-21 19:28:10,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:10,276 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:10,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:28:10,276 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:10,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1870688019, now seen corresponding path program 1 times [2021-10-21 19:28:10,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:10,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165564273] [2021-10-21 19:28:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:10,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-21 19:28:10,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:10,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165564273] [2021-10-21 19:28:10,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165564273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:10,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:10,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:10,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178542910] [2021-10-21 19:28:10,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:10,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:10,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:10,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,357 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:10,498 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2021-10-21 19:28:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:10,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 162 [2021-10-21 19:28:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:10,505 INFO L225 Difference]: With dead ends: 1530 [2021-10-21 19:28:10,505 INFO L226 Difference]: Without dead ends: 857 [2021-10-21 19:28:10,506 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 [2021-10-21 19:28:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-10-21 19:28:10,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2021-10-21 19:28:10,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 823 states have (on average 1.402187120291616) internal successors, (1154), 823 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2021-10-21 19:28:10,535 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 162 [2021-10-21 19:28:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:10,536 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2021-10-21 19:28:10,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2021-10-21 19:28:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-10-21 19:28:10,540 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:10,540 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:10,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:28:10,540 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:10,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:10,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1491644371, now seen corresponding path program 1 times [2021-10-21 19:28:10,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:10,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138039774] [2021-10-21 19:28:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:10,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-10-21 19:28:10,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:10,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138039774] [2021-10-21 19:28:10,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138039774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:10,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:10,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:10,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537947980] [2021-10-21 19:28:10,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:10,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:10,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:10,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,616 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:10,762 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2021-10-21 19:28:10,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:10,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2021-10-21 19:28:10,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:10,769 INFO L225 Difference]: With dead ends: 1892 [2021-10-21 19:28:10,769 INFO L226 Difference]: Without dead ends: 1054 [2021-10-21 19:28:10,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2021-10-21 19:28:10,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2021-10-21 19:28:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.3893280632411067) internal successors, (1406), 1012 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2021-10-21 19:28:10,803 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2021-10-21 19:28:10,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:10,803 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2021-10-21 19:28:10,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:10,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2021-10-21 19:28:10,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-21 19:28:10,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:10,807 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:10,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:28:10,808 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:10,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:10,808 INFO L82 PathProgramCache]: Analyzing trace with hash -637948485, now seen corresponding path program 1 times [2021-10-21 19:28:10,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:10,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512804298] [2021-10-21 19:28:10,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:10,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-21 19:28:10,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:10,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512804298] [2021-10-21 19:28:10,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512804298] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:10,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:10,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:10,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362111307] [2021-10-21 19:28:10,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:10,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:10,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:10,870 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:11,034 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2021-10-21 19:28:11,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:11,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-10-21 19:28:11,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:11,041 INFO L225 Difference]: With dead ends: 2148 [2021-10-21 19:28:11,041 INFO L226 Difference]: Without dead ends: 1127 [2021-10-21 19:28:11,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2021-10-21 19:28:11,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2021-10-21 19:28:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1087 states have (on average 1.3817847286108556) internal successors, (1502), 1087 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2021-10-21 19:28:11,077 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2021-10-21 19:28:11,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:11,078 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2021-10-21 19:28:11,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2021-10-21 19:28:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-21 19:28:11,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:11,083 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:11,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 19:28:11,083 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:11,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:11,084 INFO L82 PathProgramCache]: Analyzing trace with hash 668090344, now seen corresponding path program 1 times [2021-10-21 19:28:11,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:11,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440695881] [2021-10-21 19:28:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:11,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:11,150 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-21 19:28:11,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:11,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440695881] [2021-10-21 19:28:11,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440695881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:11,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:11,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:11,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934120752] [2021-10-21 19:28:11,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:11,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,153 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:11,322 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2021-10-21 19:28:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:11,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-10-21 19:28:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:11,330 INFO L225 Difference]: With dead ends: 2298 [2021-10-21 19:28:11,330 INFO L226 Difference]: Without dead ends: 1208 [2021-10-21 19:28:11,332 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-10-21 19:28:11,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2021-10-21 19:28:11,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1171 states have (on average 1.3774551665243382) internal successors, (1613), 1171 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2021-10-21 19:28:11,371 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2021-10-21 19:28:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:11,372 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2021-10-21 19:28:11,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2021-10-21 19:28:11,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-21 19:28:11,377 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:11,377 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:11,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-21 19:28:11,377 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:11,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:11,378 INFO L82 PathProgramCache]: Analyzing trace with hash 786531818, now seen corresponding path program 1 times [2021-10-21 19:28:11,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:11,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821453562] [2021-10-21 19:28:11,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:11,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-10-21 19:28:11,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:11,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821453562] [2021-10-21 19:28:11,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821453562] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:11,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:11,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:11,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757931352] [2021-10-21 19:28:11,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:11,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:11,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:11,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,451 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:11,624 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2021-10-21 19:28:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-10-21 19:28:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:11,632 INFO L225 Difference]: With dead ends: 2466 [2021-10-21 19:28:11,633 INFO L226 Difference]: Without dead ends: 1304 [2021-10-21 19:28:11,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-10-21 19:28:11,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2021-10-21 19:28:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.3805379746835442) internal successors, (1745), 1264 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2021-10-21 19:28:11,688 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2021-10-21 19:28:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:11,689 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2021-10-21 19:28:11,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2021-10-21 19:28:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-10-21 19:28:11,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:11,695 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:11,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 19:28:11,695 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:11,696 INFO L82 PathProgramCache]: Analyzing trace with hash 12496008, now seen corresponding path program 1 times [2021-10-21 19:28:11,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:11,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85051830] [2021-10-21 19:28:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:11,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:11,779 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-10-21 19:28:11,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:11,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85051830] [2021-10-21 19:28:11,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85051830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:11,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:11,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:11,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981876809] [2021-10-21 19:28:11,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:11,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:11,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:11,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,785 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:11,835 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2021-10-21 19:28:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:11,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2021-10-21 19:28:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:11,850 INFO L225 Difference]: With dead ends: 3718 [2021-10-21 19:28:11,850 INFO L226 Difference]: Without dead ends: 2490 [2021-10-21 19:28:11,852 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2021-10-21 19:28:11,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2021-10-21 19:28:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.3811821471652594) internal successors, (3435), 2487 states have internal predecessors, (3435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2021-10-21 19:28:11,931 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2021-10-21 19:28:11,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:11,932 INFO L470 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2021-10-21 19:28:11,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2021-10-21 19:28:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-10-21 19:28:11,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:11,940 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:11,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-21 19:28:11,940 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:11,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:11,941 INFO L82 PathProgramCache]: Analyzing trace with hash 130937482, now seen corresponding path program 1 times [2021-10-21 19:28:11,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:11,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106341292] [2021-10-21 19:28:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:11,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:12,009 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-10-21 19:28:12,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:12,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106341292] [2021-10-21 19:28:12,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106341292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:12,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:12,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:12,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146396630] [2021-10-21 19:28:12,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:12,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:12,013 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:12,232 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2021-10-21 19:28:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:12,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2021-10-21 19:28:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:12,249 INFO L225 Difference]: With dead ends: 5251 [2021-10-21 19:28:12,249 INFO L226 Difference]: Without dead ends: 2770 [2021-10-21 19:28:12,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-10-21 19:28:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2021-10-21 19:28:12,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2697 states have (on average 1.389321468298109) internal successors, (3747), 2697 states have internal predecessors, (3747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2021-10-21 19:28:12,344 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2021-10-21 19:28:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:12,345 INFO L470 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2021-10-21 19:28:12,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2021-10-21 19:28:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-10-21 19:28:12,353 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:12,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:12,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-21 19:28:12,354 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:12,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:12,355 INFO L82 PathProgramCache]: Analyzing trace with hash -142796669, now seen corresponding path program 1 times [2021-10-21 19:28:12,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:12,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291816089] [2021-10-21 19:28:12,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:12,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-10-21 19:28:12,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:12,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291816089] [2021-10-21 19:28:12,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291816089] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:12,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:12,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:12,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039292624] [2021-10-21 19:28:12,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:12,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:12,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:12,427 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:12,622 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2021-10-21 19:28:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:12,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2021-10-21 19:28:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:12,639 INFO L225 Difference]: With dead ends: 5443 [2021-10-21 19:28:12,639 INFO L226 Difference]: Without dead ends: 2764 [2021-10-21 19:28:12,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2021-10-21 19:28:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2021-10-21 19:28:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.379041248606466) internal successors, (3711), 2691 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2021-10-21 19:28:12,779 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2021-10-21 19:28:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:12,780 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2021-10-21 19:28:12,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2021-10-21 19:28:12,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-10-21 19:28:12,792 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:12,792 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:12,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 19:28:12,793 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:12,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:12,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1408099866, now seen corresponding path program 1 times [2021-10-21 19:28:12,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:12,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789887636] [2021-10-21 19:28:12,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:12,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-21 19:28:12,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:12,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789887636] [2021-10-21 19:28:12,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789887636] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:12,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:12,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:12,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70465583] [2021-10-21 19:28:12,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:12,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:12,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:12,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:12,881 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:13,051 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2021-10-21 19:28:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:13,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2021-10-21 19:28:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:13,068 INFO L225 Difference]: With dead ends: 5407 [2021-10-21 19:28:13,068 INFO L226 Difference]: Without dead ends: 2752 [2021-10-21 19:28:13,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-10-21 19:28:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2021-10-21 19:28:13,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.358974358974359) internal successors, (3657), 2691 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2021-10-21 19:28:13,161 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 308 [2021-10-21 19:28:13,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:13,162 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2021-10-21 19:28:13,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2021-10-21 19:28:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-10-21 19:28:13,171 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:13,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:13,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 19:28:13,172 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:13,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:13,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1960500931, now seen corresponding path program 1 times [2021-10-21 19:28:13,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:13,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469195737] [2021-10-21 19:28:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:13,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:13,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-21 19:28:13,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:13,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469195737] [2021-10-21 19:28:13,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469195737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:13,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:13,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:13,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825046548] [2021-10-21 19:28:13,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:13,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:13,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:13,261 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:13,474 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2021-10-21 19:28:13,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:13,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 336 [2021-10-21 19:28:13,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:13,491 INFO L225 Difference]: With dead ends: 5653 [2021-10-21 19:28:13,491 INFO L226 Difference]: Without dead ends: 2998 [2021-10-21 19:28:13,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-10-21 19:28:13,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2021-10-21 19:28:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2781 states have (on average 1.3581445523193096) internal successors, (3777), 2781 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2021-10-21 19:28:13,593 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2021-10-21 19:28:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:13,594 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2021-10-21 19:28:13,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2021-10-21 19:28:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-10-21 19:28:13,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:13,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:13,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-21 19:28:13,605 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:13,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:13,605 INFO L82 PathProgramCache]: Analyzing trace with hash 806996379, now seen corresponding path program 1 times [2021-10-21 19:28:13,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:13,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509629441] [2021-10-21 19:28:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:13,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-10-21 19:28:13,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:13,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509629441] [2021-10-21 19:28:13,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509629441] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:13,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:13,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:13,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337975353] [2021-10-21 19:28:13,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:13,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:13,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:13,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:13,696 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:13,776 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2021-10-21 19:28:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:13,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 337 [2021-10-21 19:28:13,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:13,804 INFO L225 Difference]: With dead ends: 7882 [2021-10-21 19:28:13,805 INFO L226 Difference]: Without dead ends: 5137 [2021-10-21 19:28:13,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:13,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2021-10-21 19:28:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2021-10-21 19:28:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 1.36482275029217) internal successors, (7007), 5134 states have internal predecessors, (7007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2021-10-21 19:28:13,981 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2021-10-21 19:28:13,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:13,982 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2021-10-21 19:28:13,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2021-10-21 19:28:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-10-21 19:28:13,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:13,996 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:13,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-21 19:28:13,996 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:13,997 INFO L82 PathProgramCache]: Analyzing trace with hash 722980357, now seen corresponding path program 1 times [2021-10-21 19:28:13,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:13,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770330034] [2021-10-21 19:28:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:13,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-21 19:28:14,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:14,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770330034] [2021-10-21 19:28:14,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770330034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:14,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629808380] [2021-10-21 19:28:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:14,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:14,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:14,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:28:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:14,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:28:14,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-10-21 19:28:15,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629808380] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:15,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:15,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 19:28:15,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519036292] [2021-10-21 19:28:15,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:28:15,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:28:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:15,377 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:15,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:15,802 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2021-10-21 19:28:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:28:15,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 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 347 [2021-10-21 19:28:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:15,821 INFO L225 Difference]: With dead ends: 10175 [2021-10-21 19:28:15,821 INFO L226 Difference]: Without dead ends: 7688 [2021-10-21 19:28:15,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2021-10-21 19:28:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2021-10-21 19:28:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5669 states, 5668 states have (on average 1.3484474241354976) internal successors, (7643), 5668 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2021-10-21 19:28:16,061 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 347 [2021-10-21 19:28:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:16,061 INFO L470 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2021-10-21 19:28:16,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:16,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2021-10-21 19:28:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-10-21 19:28:16,077 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:16,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:16,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:16,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-21 19:28:16,292 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:16,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1881562091, now seen corresponding path program 1 times [2021-10-21 19:28:16,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:16,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610381953] [2021-10-21 19:28:16,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:16,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-21 19:28:16,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:16,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610381953] [2021-10-21 19:28:16,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610381953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:16,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860422414] [2021-10-21 19:28:16,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:16,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:16,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:16,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:16,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:28:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:16,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:28:16,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-10-21 19:28:17,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860422414] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:17,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:17,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 19:28:17,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637939108] [2021-10-21 19:28:17,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:28:17,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:17,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:28:17,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:17,428 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:17,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:17,745 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2021-10-21 19:28:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:28:17,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2021-10-21 19:28:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:17,761 INFO L225 Difference]: With dead ends: 12703 [2021-10-21 19:28:17,761 INFO L226 Difference]: Without dead ends: 7058 [2021-10-21 19:28:17,769 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:17,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2021-10-21 19:28:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2021-10-21 19:28:17,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 5788 states have (on average 1.3344851416724257) internal successors, (7724), 5788 states have internal predecessors, (7724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2021-10-21 19:28:17,967 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2021-10-21 19:28:17,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:17,968 INFO L470 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2021-10-21 19:28:17,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2021-10-21 19:28:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-10-21 19:28:17,982 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:17,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:18,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:18,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:18,208 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:18,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1433443056, now seen corresponding path program 1 times [2021-10-21 19:28:18,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:18,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627866705] [2021-10-21 19:28:18,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:18,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-10-21 19:28:18,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:18,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627866705] [2021-10-21 19:28:18,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627866705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:18,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:18,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:18,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276225816] [2021-10-21 19:28:18,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:18,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:18,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:18,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:18,342 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:18,507 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2021-10-21 19:28:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:18,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 413 [2021-10-21 19:28:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:18,514 INFO L225 Difference]: With dead ends: 11133 [2021-10-21 19:28:18,514 INFO L226 Difference]: Without dead ends: 3109 [2021-10-21 19:28:18,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-10-21 19:28:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2021-10-21 19:28:18,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 1.3356344510190663) internal successors, (4063), 3042 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:18,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2021-10-21 19:28:18,603 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2021-10-21 19:28:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:18,603 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2021-10-21 19:28:18,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:18,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2021-10-21 19:28:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-10-21 19:28:18,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:18,619 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:18,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-21 19:28:18,620 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:18,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:18,620 INFO L82 PathProgramCache]: Analyzing trace with hash -517038626, now seen corresponding path program 1 times [2021-10-21 19:28:18,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:18,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732380653] [2021-10-21 19:28:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:18,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:18,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2021-10-21 19:28:18,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:18,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732380653] [2021-10-21 19:28:18,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732380653] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:18,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911097870] [2021-10-21 19:28:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:18,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:18,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:18,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:18,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:28:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:19,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:28:19,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:20,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-10-21 19:28:20,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911097870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:20,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:28:20,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:28:20,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502274113] [2021-10-21 19:28:20,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:20,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:20,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:20,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:20,660 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:20,698 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2021-10-21 19:28:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 497 [2021-10-21 19:28:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:20,704 INFO L225 Difference]: With dead ends: 3068 [2021-10-21 19:28:20,704 INFO L226 Difference]: Without dead ends: 2571 [2021-10-21 19:28:20,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2021-10-21 19:28:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2021-10-21 19:28:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2547 states have (on average 1.3345111896348645) internal successors, (3399), 2547 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:20,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2021-10-21 19:28:20,810 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 497 [2021-10-21 19:28:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:20,811 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2021-10-21 19:28:20,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:20,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2021-10-21 19:28:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-10-21 19:28:20,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:20,820 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:20,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:21,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:21,046 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:21,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:21,046 INFO L82 PathProgramCache]: Analyzing trace with hash 706380836, now seen corresponding path program 1 times [2021-10-21 19:28:21,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:21,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834139] [2021-10-21 19:28:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:21,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1546 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2021-10-21 19:28:21,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:21,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834139] [2021-10-21 19:28:21,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834139] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:21,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649974508] [2021-10-21 19:28:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:21,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:21,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:21,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:21,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:28:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:21,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:28:21,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2339 trivial. 0 not checked. [2021-10-21 19:28:22,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649974508] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:22,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:28:22,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:28:22,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042570720] [2021-10-21 19:28:22,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:22,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:22,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:22,819 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:22,957 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2021-10-21 19:28:22,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:22,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 498 [2021-10-21 19:28:22,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:22,964 INFO L225 Difference]: With dead ends: 5167 [2021-10-21 19:28:22,964 INFO L226 Difference]: Without dead ends: 2656 [2021-10-21 19:28:22,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-10-21 19:28:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2021-10-21 19:28:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2652 states have (on average 1.2861990950226245) internal successors, (3411), 2652 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:23,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2021-10-21 19:28:23,051 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 498 [2021-10-21 19:28:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:23,052 INFO L470 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2021-10-21 19:28:23,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:23,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2021-10-21 19:28:23,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-10-21 19:28:23,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:23,061 INFO L512 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:23,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:23,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:23,288 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:23,288 INFO L82 PathProgramCache]: Analyzing trace with hash 180586689, now seen corresponding path program 2 times [2021-10-21 19:28:23,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:23,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383470260] [2021-10-21 19:28:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:23,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-10-21 19:28:23,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:23,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383470260] [2021-10-21 19:28:23,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383470260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:23,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4469855] [2021-10-21 19:28:23,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:28:23,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:23,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:23,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:23,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:28:24,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:28:24,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:28:24,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:28:24,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-10-21 19:28:25,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4469855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:25,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:25,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 19:28:25,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483043224] [2021-10-21 19:28:25,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:28:25,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:25,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:28:25,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:25,254 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:25,399 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2021-10-21 19:28:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:28:25,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 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 609 [2021-10-21 19:28:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:25,400 INFO L225 Difference]: With dead ends: 2888 [2021-10-21 19:28:25,400 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:28:25,403 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:28:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:28:25,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:28:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:28:25,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 609 [2021-10-21 19:28:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:25,404 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:28:25,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:28:25,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:28:25,407 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:28:25,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:25,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-21 19:28:25,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:28:25,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:25,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:26,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:28:27,039 INFO L857 garLoopResultBuilder]: For program point L300(lines 300 306) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L853 garLoopResultBuilder]: At program point L201(lines 197 530) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse0) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0))) [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 569) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 468) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 369) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 272) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L203(lines 203 528) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 539) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 550) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 305) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 240) no Hoare annotation was computed. [2021-10-21 19:28:27,040 INFO L857 garLoopResultBuilder]: For program point L303-2(lines 222 520) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L853 garLoopResultBuilder]: At program point L171(lines 167 540) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 111) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L502(lines 502 504) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L469(lines 469 473) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L502-2(lines 502 504) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L469-2(lines 469 473) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L370-2(lines 370 374) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L206(lines 206 527) no Hoare annotation was computed. [2021-10-21 19:28:27,041 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 538) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 549) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 341) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L339-2(lines 222 520) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L853 garLoopResultBuilder]: At program point L207(lines 203 528) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (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)))) [2021-10-21 19:28:27,042 INFO L853 garLoopResultBuilder]: At program point L141(lines 137 550) 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 4432)) [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L108(lines 108 110) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L108-2(lines 105 111) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 441) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 408) no Hoare annotation was computed. [2021-10-21 19:28:27,042 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 526) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 537) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 548) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 510) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 510) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L860 garLoopResultBuilder]: At program point L575(lines 118 576) the Hoare annotation is: true [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 525) no Hoare annotation was computed. [2021-10-21 19:28:27,043 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 536) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 547) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 117) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L853 garLoopResultBuilder]: At program point L213(lines 209 526) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (not .cse2)) (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) .cse2))) [2021-10-21 19:28:27,044 INFO L853 garLoopResultBuilder]: At program point L147(lines 143 548) 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 4432)) [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L114(lines 114 116) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 263) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L247-2(lines 222 520) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 491) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 460) no Hoare annotation was computed. [2021-10-21 19:28:27,044 INFO L857 garLoopResultBuilder]: For program point L446-1(lines 446 460) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L479-2(lines 479 491) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 350) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 283) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 524) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L281-2(lines 222 520) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 535) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 546) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L857 garLoopResultBuilder]: For program point L513(lines 513 515) no Hoare annotation was computed. [2021-10-21 19:28:27,045 INFO L853 garLoopResultBuilder]: At program point L216(lines 215 524) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (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) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (not .cse2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)))) [2021-10-21 19:28:27,045 INFO L853 garLoopResultBuilder]: At program point L183(lines 173 538) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L580(lines 580 582) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 384) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L416(lines 416 418) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 523) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 534) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 545) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L119-1(lines 96 586) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L857 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2021-10-21 19:28:27,046 INFO L860 garLoopResultBuilder]: At program point L219(lines 218 523) the Hoare annotation is: true [2021-10-21 19:28:27,047 INFO L853 garLoopResultBuilder]: At program point L153(lines 149 546) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2))) [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L120(line 120) no Hoare annotation was computed. [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L253(lines 253 256) no Hoare annotation was computed. [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L485(lines 485 488) no Hoare annotation was computed. [2021-10-21 19:28:27,047 INFO L860 garLoopResultBuilder]: At program point L221(lines 220 523) the Hoare annotation is: true [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 533) no Hoare annotation was computed. [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 544) no Hoare annotation was computed. [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 555) no Hoare annotation was computed. [2021-10-21 19:28:27,047 INFO L860 garLoopResultBuilder]: At program point L585(lines 22 587) the Hoare annotation is: true [2021-10-21 19:28:27,047 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 331) no Hoare annotation was computed. [2021-10-21 19:28:27,048 INFO L857 garLoopResultBuilder]: For program point L321-2(lines 321 331) no Hoare annotation was computed. [2021-10-21 19:28:27,048 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 534) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-21 19:28:27,048 INFO L853 garLoopResultBuilder]: At program point L123(lines 122 555) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-10-21 19:28:27,048 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 357) no Hoare annotation was computed. [2021-10-21 19:28:27,048 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:28:27,048 INFO L853 garLoopResultBuilder]: At program point L521(lines 119 574) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse0 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse9 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (not .cse2)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse6 .cse7 .cse4 .cse8) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse0 .cse4 .cse2) (and .cse9 .cse10 .cse11 .cse1 .cse2) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2 .cse3 .cse5) (and .cse4 .cse2 .cse12) (and .cse9 .cse10 .cse4 .cse8 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse2 .cse3) (and .cse1 .cse12) (and .cse6 .cse7 .cse11 .cse1 .cse2)))) [2021-10-21 19:28:27,048 INFO L857 garLoopResultBuilder]: For program point L422(lines 422 426) no Hoare annotation was computed. [2021-10-21 19:28:27,048 INFO L853 garLoopResultBuilder]: At program point L356(lines 96 586) the Hoare annotation is: false [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L422-2(lines 222 520) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 532) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 543) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 554) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 261) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L853 garLoopResultBuilder]: At program point L159(lines 155 544) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 572) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 393) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 360) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 327) no Hoare annotation was computed. [2021-10-21 19:28:27,049 INFO L857 garLoopResultBuilder]: For program point L292(lines 292 294) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 323 331) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 571) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L853 garLoopResultBuilder]: At program point L227(lines 125 554) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 531) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 542) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 553) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 563) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L857 garLoopResultBuilder]: For program point L558-2(lines 557 571) no Hoare annotation was computed. [2021-10-21 19:28:27,050 INFO L853 garLoopResultBuilder]: At program point L195(lines 191 532) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L560(lines 560 562) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L395(lines 395 400) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L395-2(lines 395 400) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 530) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 541) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 552) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 584) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L853 garLoopResultBuilder]: At program point L165(lines 161 542) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 496 498) no Hoare annotation was computed. [2021-10-21 19:28:27,051 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-10-21 19:28:27,054 INFO L857 garLoopResultBuilder]: For program point L232-2(lines 232 234) no Hoare annotation was computed. [2021-10-21 19:28:27,054 INFO L860 garLoopResultBuilder]: At program point L596(lines 588 598) the Hoare annotation is: true [2021-10-21 19:28:27,054 INFO L857 garLoopResultBuilder]: For program point L431(lines 431 434) no Hoare annotation was computed. [2021-10-21 19:28:27,054 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 529) no Hoare annotation was computed. [2021-10-21 19:28:27,055 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 540) no Hoare annotation was computed. [2021-10-21 19:28:27,055 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 551) no Hoare annotation was computed. [2021-10-21 19:28:27,059 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:28:27,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:28:27 BoogieIcfgContainer [2021-10-21 19:28:27,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:28:27,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:28:27,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:28:27,097 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:28:27,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:28:07" (3/4) ... [2021-10-21 19:28:27,100 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:28:27,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:28:27,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:28:27,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:28:27,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:28:27,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:28:27,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:28:27,269 INFO L168 Benchmark]: Toolchain (without parser) took 20931.55 ms. Allocated memory was 92.3 MB in the beginning and 350.2 MB in the end (delta: 257.9 MB). Free memory was 51.5 MB in the beginning and 117.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 191.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,270 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:28:27,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.45 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 63.7 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.89 ms. Allocated memory is still 92.3 MB. Free memory was 63.7 MB in the beginning and 60.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,271 INFO L168 Benchmark]: Boogie Preprocessor took 81.03 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 58.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,272 INFO L168 Benchmark]: RCFGBuilder took 814.40 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 58.5 MB in the beginning and 99.8 MB in the end (delta: -41.3 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,272 INFO L168 Benchmark]: TraceAbstraction took 19343.07 ms. Allocated memory was 127.9 MB in the beginning and 350.2 MB in the end (delta: 222.3 MB). Free memory was 99.8 MB in the beginning and 127.6 MB in the end (delta: -27.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,273 INFO L168 Benchmark]: Witness Printer took 171.34 ms. Allocated memory is still 350.2 MB. Free memory was 127.6 MB in the beginning and 117.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:28:27,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 424.45 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 63.7 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.89 ms. Allocated memory is still 92.3 MB. Free memory was 63.7 MB in the beginning and 60.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.03 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 58.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 814.40 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 58.5 MB in the beginning and 99.8 MB in the end (delta: -41.3 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19343.07 ms. Allocated memory was 127.9 MB in the beginning and 350.2 MB in the end (delta: 222.3 MB). Free memory was 99.8 MB in the beginning and 127.6 MB in the end (delta: -27.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 16.1 GB. * Witness Printer took 171.34 ms. Allocated memory is still 350.2 MB. Free memory was 127.6 MB in the beginning and 117.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 584]: 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: 19247.2ms, OverallIterations: 27, TraceHistogramMax: 21, EmptinessCheckTime: 179.5ms, AutomataDifference: 4288.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1415.9ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4907 SDtfs, 2134 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2070.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2412 GetRequests, 2375 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1761.1ms AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9020 FormulaSimplificationTreeSizeReduction, 552.8ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 2033 FormulaSimplificationTreeSizeReductionInter, 849.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 274.0ms SsaConstructionTime, 1128.0ms SatisfiabilityAnalysisTime, 7027.3ms InterpolantComputationTime, 8657 NumberOfCodeBlocks, 8657 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8625 ConstructedInterpolants, 0 QuantifiedInterpolants, 11621 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4061 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 37541/37631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4512 <= s__state) || (((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) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: ((4352 <= s__state && s__state <= 4432) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: ((((4352 <= s__state && s__state <= 4432) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || (((4352 <= s__state && blastFlag == 2) && s__state <= 4432) && s__hit == 0) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((((((((((((((4400 == s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && 4512 <= s__state) && s__state <= 4528)) || (s__state == 4384 && blastFlag == 1)) || (((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) && !(s__hit == 0))) || (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)) || ((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 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) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__state <= 4464) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) && !(s__hit == 0)) || ((((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: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: ((s__state <= 4448 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state <= 4432 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((s__state <= 4480 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && 4512 <= s__state) && s__state <= 4528) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 1) && s__state <= 4432 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:28:27,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c5474a6-c5df-4142-a7f8-54d7123873b2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...