./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label25.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_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/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_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/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_3019180d-c5cd-42a4-9197-0479d515906f/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 af25e83b6858fff60f7d1f210bf28c8f4df9d888273dfb197f604bfc8ae9e1a1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:13:42,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:13:42,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:13:42,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:13:42,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:13:42,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:13:42,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:13:42,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:13:42,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:13:42,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:13:42,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:13:42,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:13:42,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:13:42,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:13:42,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:13:42,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:13:42,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:13:42,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:13:42,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:13:42,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:13:42,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:13:42,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:13:42,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:13:42,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:13:42,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:13:42,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:13:42,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:13:42,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:13:42,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:13:42,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:13:42,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:13:42,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:13:42,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:13:42,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:13:42,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:13:42,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:13:42,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:13:42,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:13:42,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:13:42,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:13:42,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:13:42,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:13:43,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:13:43,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:13:43,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:13:43,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:13:43,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:13:43,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:13:43,049 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:13:43,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:13:43,049 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:13:43,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:13:43,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:13:43,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:13:43,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:13:43,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:13:43,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:13:43,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:13:43,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:13:43,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:13:43,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:13:43,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:13:43,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:13:43,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:13:43,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:13:43,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:13:43,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:13:43,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:13:43,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:13:43,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:13:43,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:13:43,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:13:43,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:13:43,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:13:43,057 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_3019180d-c5cd-42a4-9197-0479d515906f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af25e83b6858fff60f7d1f210bf28c8f4df9d888273dfb197f604bfc8ae9e1a1 [2021-10-21 20:13:43,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:13:43,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:13:43,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:13:43,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:13:43,431 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:13:43,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2021-10-21 20:13:43,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/data/90621ed13/52ef5f2a6dc3424784b250c566db6c2b/FLAGffdadac94 [2021-10-21 20:13:44,232 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:13:44,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2021-10-21 20:13:44,259 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/data/90621ed13/52ef5f2a6dc3424784b250c566db6c2b/FLAGffdadac94 [2021-10-21 20:13:44,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/data/90621ed13/52ef5f2a6dc3424784b250c566db6c2b [2021-10-21 20:13:44,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:13:44,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:13:44,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:44,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:13:44,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:13:44,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:44" (1/1) ... [2021-10-21 20:13:44,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42896037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:44, skipping insertion in model container [2021-10-21 20:13:44,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:44" (1/1) ... [2021-10-21 20:13:44,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:13:44,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:13:44,737 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_3019180d-c5cd-42a4-9197-0479d515906f/sv-benchmarks/c/eca-rers2012/Problem14_label25.c[6534,6547] [2021-10-21 20:13:45,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:45,056 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:13:45,132 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_3019180d-c5cd-42a4-9197-0479d515906f/sv-benchmarks/c/eca-rers2012/Problem14_label25.c[6534,6547] [2021-10-21 20:13:45,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:45,400 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:13:45,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45 WrapperNode [2021-10-21 20:13:45,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:45,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:45,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:13:45,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:13:45,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:45,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:13:45,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:13:45,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:13:45,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:13:45,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:13:45,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:13:45,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:13:45,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (1/1) ... [2021-10-21 20:13:45,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:13:45,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:45,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:45,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:13:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:13:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:13:45,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:13:45,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:13:47,401 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:13:47,401 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 20:13:47,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:47 BoogieIcfgContainer [2021-10-21 20:13:47,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:13:47,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:13:47,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:13:47,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:13:47,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:13:44" (1/3) ... [2021-10-21 20:13:47,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca9145c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:13:47, skipping insertion in model container [2021-10-21 20:13:47,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:45" (2/3) ... [2021-10-21 20:13:47,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca9145c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:13:47, skipping insertion in model container [2021-10-21 20:13:47,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:47" (3/3) ... [2021-10-21 20:13:47,416 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label25.c [2021-10-21 20:13:47,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:13:47,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:13:47,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:13:47,508 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:13:47,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:13:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-21 20:13:47,546 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:47,547 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:47,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:47,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:47,554 INFO L82 PathProgramCache]: Analyzing trace with hash -107486446, now seen corresponding path program 1 times [2021-10-21 20:13:47,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:47,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90189235] [2021-10-21 20:13:47,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:47,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:48,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:48,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90189235] [2021-10-21 20:13:48,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90189235] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:48,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:48,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:13:48,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777037782] [2021-10-21 20:13:48,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:13:48,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:48,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:13:48,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:48,209 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 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 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:50,144 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2021-10-21 20:13:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:13:50,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-21 20:13:50,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:50,167 INFO L225 Difference]: With dead ends: 852 [2021-10-21 20:13:50,168 INFO L226 Difference]: Without dead ends: 538 [2021-10-21 20:13:50,173 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:13:50,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-21 20:13:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-21 20:13:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:50,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-10-21 20:13:50,282 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 64 [2021-10-21 20:13:50,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:50,283 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-10-21 20:13:50,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:50,284 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-10-21 20:13:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-10-21 20:13:50,298 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:50,299 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:50,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:13:50,300 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:50,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:50,301 INFO L82 PathProgramCache]: Analyzing trace with hash 228116006, now seen corresponding path program 1 times [2021-10-21 20:13:50,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:50,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470094273] [2021-10-21 20:13:50,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:50,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-21 20:13:50,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:50,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470094273] [2021-10-21 20:13:50,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470094273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:50,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:50,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:13:50,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456968458] [2021-10-21 20:13:50,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:13:50,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:50,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:13:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:13:50,518 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:51,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:51,434 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2021-10-21 20:13:51,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:13:51,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 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 200 [2021-10-21 20:13:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:51,442 INFO L225 Difference]: With dead ends: 1074 [2021-10-21 20:13:51,442 INFO L226 Difference]: Without dead ends: 716 [2021-10-21 20:13:51,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:13:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-21 20:13:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-21 20:13:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-10-21 20:13:51,513 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 200 [2021-10-21 20:13:51,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:51,514 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-10-21 20:13:51,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-10-21 20:13:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-10-21 20:13:51,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:51,524 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:51,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:13:51,524 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:51,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:51,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1127504167, now seen corresponding path program 1 times [2021-10-21 20:13:51,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:51,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173104744] [2021-10-21 20:13:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:51,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-10-21 20:13:51,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:51,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173104744] [2021-10-21 20:13:51,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173104744] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:51,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:51,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:13:51,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978926377] [2021-10-21 20:13:51,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:13:51,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:13:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:51,767 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:52,736 INFO L93 Difference]: Finished difference Result 1459 states and 2023 transitions. [2021-10-21 20:13:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:13:52,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 223 [2021-10-21 20:13:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:52,745 INFO L225 Difference]: With dead ends: 1459 [2021-10-21 20:13:52,745 INFO L226 Difference]: Without dead ends: 894 [2021-10-21 20:13:52,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-10-21 20:13:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2021-10-21 20:13:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2021-10-21 20:13:52,779 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 223 [2021-10-21 20:13:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:52,780 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2021-10-21 20:13:52,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2021-10-21 20:13:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-10-21 20:13:52,790 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:52,791 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:52,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:13:52,791 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:52,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1919360194, now seen corresponding path program 1 times [2021-10-21 20:13:52,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:52,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539276397] [2021-10-21 20:13:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:52,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-21 20:13:53,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:53,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539276397] [2021-10-21 20:13:53,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539276397] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:53,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:53,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:13:53,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939481960] [2021-10-21 20:13:53,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:13:53,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:53,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:13:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:13:53,112 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:53,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:53,856 INFO L93 Difference]: Finished difference Result 1964 states and 2381 transitions. [2021-10-21 20:13:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:13:53,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 354 [2021-10-21 20:13:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:53,867 INFO L225 Difference]: With dead ends: 1964 [2021-10-21 20:13:53,868 INFO L226 Difference]: Without dead ends: 1250 [2021-10-21 20:13:53,869 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 20:13:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-21 20:13:53,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-10-21 20:13:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.154523618895116) internal successors, (1442), 1249 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1442 transitions. [2021-10-21 20:13:53,910 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1442 transitions. Word has length 354 [2021-10-21 20:13:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:53,912 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1442 transitions. [2021-10-21 20:13:53,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1442 transitions. [2021-10-21 20:13:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-10-21 20:13:53,921 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:53,922 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:13:53,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:13:53,922 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash -57836550, now seen corresponding path program 1 times [2021-10-21 20:13:53,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:53,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803444117] [2021-10-21 20:13:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:53,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:54,183 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-21 20:13:54,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:54,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803444117] [2021-10-21 20:13:54,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803444117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:54,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:54,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:13:54,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592334190] [2021-10-21 20:13:54,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:13:54,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:54,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:13:54,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:54,187 INFO L87 Difference]: Start difference. First operand 1250 states and 1442 transitions. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:55,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:55,253 INFO L93 Difference]: Finished difference Result 2854 states and 3314 transitions. [2021-10-21 20:13:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:13:55,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 378 [2021-10-21 20:13:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:55,272 INFO L225 Difference]: With dead ends: 2854 [2021-10-21 20:13:55,273 INFO L226 Difference]: Without dead ends: 1784 [2021-10-21 20:13:55,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:55,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-21 20:13:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2021-10-21 20:13:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1256309590577678) internal successors, (2007), 1783 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2007 transitions. [2021-10-21 20:13:55,331 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2007 transitions. Word has length 378 [2021-10-21 20:13:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:55,332 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2007 transitions. [2021-10-21 20:13:55,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2007 transitions. [2021-10-21 20:13:55,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-10-21 20:13:55,345 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:55,346 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-21 20:13:55,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:13:55,346 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:55,347 INFO L82 PathProgramCache]: Analyzing trace with hash -538318094, now seen corresponding path program 1 times [2021-10-21 20:13:55,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:55,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859923132] [2021-10-21 20:13:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:55,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-10-21 20:13:55,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:55,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859923132] [2021-10-21 20:13:55,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859923132] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:55,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:55,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:13:55,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887005282] [2021-10-21 20:13:55,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:13:55,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:13:55,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:55,679 INFO L87 Difference]: Start difference. First operand 1784 states and 2007 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:56,526 INFO L93 Difference]: Finished difference Result 3624 states and 4093 transitions. [2021-10-21 20:13:56,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:13:56,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 434 [2021-10-21 20:13:56,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:13:56,549 INFO L225 Difference]: With dead ends: 3624 [2021-10-21 20:13:56,549 INFO L226 Difference]: Without dead ends: 1962 [2021-10-21 20:13:56,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:13:56,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-21 20:13:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2021-10-21 20:13:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0903426791277258) internal successors, (1750), 1605 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1750 transitions. [2021-10-21 20:13:56,607 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1750 transitions. Word has length 434 [2021-10-21 20:13:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:13:56,609 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1750 transitions. [2021-10-21 20:13:56,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1750 transitions. [2021-10-21 20:13:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-10-21 20:13:56,620 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:13:56,621 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:56,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 20:13:56,622 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:13:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:56,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1120801549, now seen corresponding path program 2 times [2021-10-21 20:13:56,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:56,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106594695] [2021-10-21 20:13:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:56,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 497 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-21 20:13:57,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:57,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106594695] [2021-10-21 20:13:57,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106594695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:57,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764018972] [2021-10-21 20:13:57,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:13:57,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:57,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:57,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:57,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:13:57,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:13:57,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:13:57,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:57,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 20:13:59,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764018972] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:59,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:13:59,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-21 20:13:59,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637546926] [2021-10-21 20:13:59,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:13:59,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:59,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:13:59,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:13:59,807 INFO L87 Difference]: Start difference. First operand 1606 states and 1750 transitions. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:00,869 INFO L93 Difference]: Finished difference Result 3773 states and 4178 transitions. [2021-10-21 20:14:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:14:00,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 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 460 [2021-10-21 20:14:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:14:00,885 INFO L225 Difference]: With dead ends: 3773 [2021-10-21 20:14:00,885 INFO L226 Difference]: Without dead ends: 2347 [2021-10-21 20:14:00,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 53.9ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:14:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2021-10-21 20:14:00,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 1962. [2021-10-21 20:14:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.0810810810810811) internal successors, (2120), 1961 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:00,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2120 transitions. [2021-10-21 20:14:00,980 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2120 transitions. Word has length 460 [2021-10-21 20:14:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:14:00,981 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2120 transitions. [2021-10-21 20:14:00,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2120 transitions. [2021-10-21 20:14:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2021-10-21 20:14:00,987 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:14:00,988 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:01,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:01,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:01,199 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:14:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:01,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1091026898, now seen corresponding path program 1 times [2021-10-21 20:14:01,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:01,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929420865] [2021-10-21 20:14:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:01,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 20:14:01,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:01,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929420865] [2021-10-21 20:14:01,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929420865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:14:01,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:14:01,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:14:01,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105149411] [2021-10-21 20:14:01,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:14:01,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:01,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:14:01,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:14:01,464 INFO L87 Difference]: Start difference. First operand 1962 states and 2120 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:02,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:02,122 INFO L93 Difference]: Finished difference Result 4634 states and 5064 transitions. [2021-10-21 20:14:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:14:02,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 467 [2021-10-21 20:14:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:14:02,139 INFO L225 Difference]: With dead ends: 4634 [2021-10-21 20:14:02,139 INFO L226 Difference]: Without dead ends: 2852 [2021-10-21 20:14:02,142 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:14:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-21 20:14:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2318. [2021-10-21 20:14:02,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0845921450151057) internal successors, (2513), 2317 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2513 transitions. [2021-10-21 20:14:02,205 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2513 transitions. Word has length 467 [2021-10-21 20:14:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:14:02,206 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2513 transitions. [2021-10-21 20:14:02,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2513 transitions. [2021-10-21 20:14:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2021-10-21 20:14:02,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:14:02,212 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 20:14:02,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 20:14:02,213 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:14:02,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:02,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1499098357, now seen corresponding path program 1 times [2021-10-21 20:14:02,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:02,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325562474] [2021-10-21 20:14:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:02,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:02,505 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 497 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-21 20:14:02,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:02,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325562474] [2021-10-21 20:14:02,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325562474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:02,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415701329] [2021-10-21 20:14:02,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:02,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:02,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:02,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:02,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:14:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:02,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:02,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-10-21 20:14:04,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415701329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:14:04,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:14:04,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-21 20:14:04,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563552534] [2021-10-21 20:14:04,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:14:04,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:14:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:04,491 INFO L87 Difference]: Start difference. First operand 2318 states and 2513 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:05,119 INFO L93 Difference]: Finished difference Result 5346 states and 5848 transitions. [2021-10-21 20:14:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:14:05,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 512 [2021-10-21 20:14:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:14:05,140 INFO L225 Difference]: With dead ends: 5346 [2021-10-21 20:14:05,140 INFO L226 Difference]: Without dead ends: 3208 [2021-10-21 20:14:05,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:05,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-21 20:14:05,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-21 20:14:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0834794808839003) internal successors, (3089), 2851 states have internal predecessors, (3089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3089 transitions. [2021-10-21 20:14:05,226 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3089 transitions. Word has length 512 [2021-10-21 20:14:05,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:14:05,227 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3089 transitions. [2021-10-21 20:14:05,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3089 transitions. [2021-10-21 20:14:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2021-10-21 20:14:05,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:14:05,237 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:05,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:05,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:05,459 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:14:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:05,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1008613683, now seen corresponding path program 1 times [2021-10-21 20:14:05,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:05,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977657010] [2021-10-21 20:14:05,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:05,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 858 proven. 195 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-10-21 20:14:05,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:05,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977657010] [2021-10-21 20:14:05,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977657010] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:05,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403205495] [2021-10-21 20:14:05,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:05,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:05,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:05,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:05,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:14:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:06,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:06,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2021-10-21 20:14:08,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403205495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:14:08,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:14:08,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-21 20:14:08,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200515034] [2021-10-21 20:14:08,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:14:08,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:08,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:14:08,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:08,284 INFO L87 Difference]: Start difference. First operand 2852 states and 3089 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:08,931 INFO L93 Difference]: Finished difference Result 6058 states and 6637 transitions. [2021-10-21 20:14:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:14:08,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 611 [2021-10-21 20:14:08,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:14:08,953 INFO L225 Difference]: With dead ends: 6058 [2021-10-21 20:14:08,953 INFO L226 Difference]: Without dead ends: 3386 [2021-10-21 20:14:08,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-10-21 20:14:09,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2021-10-21 20:14:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.084502650452136) internal successors, (3478), 3207 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3478 transitions. [2021-10-21 20:14:09,044 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3478 transitions. Word has length 611 [2021-10-21 20:14:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:14:09,046 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3478 transitions. [2021-10-21 20:14:09,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3478 transitions. [2021-10-21 20:14:09,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2021-10-21 20:14:09,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:14:09,057 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:14:09,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:09,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-21 20:14:09,283 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:14:09,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:14:09,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2022557042, now seen corresponding path program 1 times [2021-10-21 20:14:09,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:14:09,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637491397] [2021-10-21 20:14:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:09,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:14:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 956 proven. 195 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-10-21 20:14:09,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:14:09,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637491397] [2021-10-21 20:14:09,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637491397] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:14:09,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422556657] [2021-10-21 20:14:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:14:09,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:14:09,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:14:09,727 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:14:09,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:14:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:14:10,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:14:10,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:14:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1009 trivial. 0 not checked. [2021-10-21 20:14:12,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422556657] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:14:12,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:14:12,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-21 20:14:12,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56103391] [2021-10-21 20:14:12,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:14:12,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:14:12,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:14:12,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:12,217 INFO L87 Difference]: Start difference. First operand 3208 states and 3478 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:14:12,826 INFO L93 Difference]: Finished difference Result 7480 states and 8166 transitions. [2021-10-21 20:14:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:14:12,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 649 [2021-10-21 20:14:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:14:12,828 INFO L225 Difference]: With dead ends: 7480 [2021-10-21 20:14:12,828 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:14:12,837 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.3ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:14:12,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:14:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:14:12,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:14:12,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 649 [2021-10-21 20:14:12,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:14:12,839 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:14:12,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:14:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:14:12,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:14:12,842 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:14:12,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:14:13,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-21 20:14:13,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:14:13,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:14:13,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:14:13,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:14:13,310 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-21 20:14:13,310 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-21 20:14:13,310 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-21 20:14:13,310 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-21 20:14:13,311 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-21 20:14:13,312 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-21 20:14:13,313 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-21 20:14:13,314 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,314 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,314 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,314 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-21 20:14:13,316 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-21 20:14:13,316 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-21 20:14:13,316 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-21 20:14:13,316 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-21 20:14:13,316 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-21 20:14:13,316 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-21 20:14:13,317 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-21 20:14:13,319 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,319 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,320 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,320 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-21 20:14:13,320 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-21 20:14:13,320 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-21 20:14:13,320 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-21 20:14:13,320 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-21 20:14:13,321 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-21 20:14:13,321 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-21 20:14:13,321 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-21 20:14:13,321 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,321 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,321 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,322 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-21 20:14:13,322 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-21 20:14:13,322 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-21 20:14:13,322 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-21 20:14:13,322 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-21 20:14:13,322 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,323 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-21 20:14:13,324 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-21 20:14:13,324 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-21 20:14:13,324 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-21 20:14:13,324 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-21 20:14:13,324 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-21 20:14:13,325 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-21 20:14:13,325 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:14:13,326 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,326 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,326 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,326 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-21 20:14:13,326 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-21 20:14:13,326 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-21 20:14:13,327 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-21 20:14:13,327 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-21 20:14:13,327 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-21 20:14:13,327 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-21 20:14:13,327 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-21 20:14:13,328 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-21 20:14:13,328 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,328 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,328 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,328 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-21 20:14:13,328 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-21 20:14:13,329 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:14:13,330 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-21 20:14:13,331 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 206) no Hoare annotation was computed. [2021-10-21 20:14:13,331 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-21 20:14:13,331 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-21 20:14:13,332 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-21 20:14:13,332 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-21 20:14:13,332 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,332 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,332 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-21 20:14:13,333 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-21 20:14:13,334 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-21 20:14:13,334 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,334 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,334 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,334 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-21 20:14:13,334 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-21 20:14:13,335 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-21 20:14:13,335 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-21 20:14:13,335 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-21 20:14:13,335 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-21 20:14:13,335 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-21 20:14:13,335 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-21 20:14:13,336 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-21 20:14:13,339 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-21 20:14:13,339 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-21 20:14:13,340 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-21 20:14:13,340 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-21 20:14:13,340 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,340 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,340 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,340 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-21 20:14:13,341 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-21 20:14:13,342 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,342 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,342 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,342 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-21 20:14:13,342 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-21 20:14:13,342 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-21 20:14:13,343 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-21 20:14:13,343 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-21 20:14:13,343 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-21 20:14:13,343 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-21 20:14:13,343 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-21 20:14:13,343 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-21 20:14:13,344 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-21 20:14:13,345 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-21 20:14:13,345 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-21 20:14:13,345 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,345 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,345 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-21 20:14:13,345 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,346 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,347 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse2 (<= ~a21~0 6)) (.cse1 (not (= ~a15~0 6)))) (or (and (<= 9 ~a21~0) .cse0) (and .cse0 .cse1) (and .cse0 (< 11 ~a12~0)) (and .cse0 .cse2) (and (<= ~a15~0 8) .cse2 .cse1 (<= (+ 49 ~a12~0) 0)))) [2021-10-21 20:14:13,347 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-21 20:14:13,347 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-21 20:14:13,347 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-21 20:14:13,347 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-21 20:14:13,348 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-21 20:14:13,348 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-21 20:14:13,348 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-21 20:14:13,348 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-21 20:14:13,348 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,348 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,349 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-21 20:14:13,349 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-21 20:14:13,349 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,350 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,351 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:14:13,351 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-21 20:14:13,351 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-21 20:14:13,351 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-21 20:14:13,351 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-21 20:14:13,351 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-21 20:14:13,352 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-21 20:14:13,352 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,352 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,352 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-21 20:14:13,352 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,352 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-21 20:14:13,354 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse2 (<= ~a21~0 6)) (.cse1 (not (= ~a15~0 6)))) (or (and (<= 9 ~a21~0) .cse0) (and .cse0 .cse1) (and .cse0 (< 11 ~a12~0)) (and .cse0 .cse2) (and (<= ~a15~0 8) .cse2 .cse1 (<= (+ 49 ~a12~0) 0)))) [2021-10-21 20:14:13,354 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-21 20:14:13,354 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-21 20:14:13,354 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-21 20:14:13,354 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-21 20:14:13,354 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,355 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 20:14:13,356 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-21 20:14:13,356 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-21 20:14:13,356 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-21 20:14:13,356 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-21 20:14:13,361 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:14:13,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:14:13 BoogieIcfgContainer [2021-10-21 20:14:13,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:14:13,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:14:13,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:14:13,386 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:14:13,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:47" (3/4) ... [2021-10-21 20:14:13,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:14:13,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 20:14:13,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:14:13,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:14:13,421 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:14:13,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:14:13,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:14:13,594 INFO L168 Benchmark]: Toolchain (without parser) took 29206.88 ms. Allocated memory was 100.7 MB in the beginning and 287.3 MB in the end (delta: 186.6 MB). Free memory was 60.2 MB in the beginning and 131.1 MB in the end (delta: -70.9 MB). Peak memory consumption was 117.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,595 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 78.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:14:13,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1012.25 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 60.0 MB in the beginning and 90.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.28 ms. Allocated memory is still 134.2 MB. Free memory was 90.1 MB in the beginning and 80.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,597 INFO L168 Benchmark]: Boogie Preprocessor took 92.25 ms. Allocated memory is still 134.2 MB. Free memory was 80.7 MB in the beginning and 74.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,597 INFO L168 Benchmark]: RCFGBuilder took 1796.47 ms. Allocated memory is still 134.2 MB. Free memory was 74.9 MB in the beginning and 70.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 51.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,598 INFO L168 Benchmark]: TraceAbstraction took 25977.90 ms. Allocated memory was 134.2 MB in the beginning and 287.3 MB in the end (delta: 153.1 MB). Free memory was 69.6 MB in the beginning and 150.0 MB in the end (delta: -80.4 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,598 INFO L168 Benchmark]: Witness Printer took 206.92 ms. Allocated memory is still 287.3 MB. Free memory was 150.0 MB in the beginning and 131.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:14:13,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 78.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1012.25 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 60.0 MB in the beginning and 90.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.28 ms. Allocated memory is still 134.2 MB. Free memory was 90.1 MB in the beginning and 80.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.25 ms. Allocated memory is still 134.2 MB. Free memory was 80.7 MB in the beginning and 74.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1796.47 ms. Allocated memory is still 134.2 MB. Free memory was 74.9 MB in the beginning and 70.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 51.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25977.90 ms. Allocated memory was 134.2 MB in the beginning and 287.3 MB in the end (delta: 153.1 MB). Free memory was 69.6 MB in the beginning and 150.0 MB in the end (delta: -80.4 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. * Witness Printer took 206.92 ms. Allocated memory is still 287.3 MB. Free memory was 150.0 MB in the beginning and 131.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 206]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25860.9ms, OverallIterations: 11, TraceHistogramMax: 6, EmptinessCheckTime: 110.8ms, AutomataDifference: 10330.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 239.1ms, InitialAbstractionConstructionTime: 19.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1254 SDtfs, 2011 SDslu, 73 SDs, 0 SdLazy, 6338 SolverSat, 1179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7414.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2269 GetRequests, 2235 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 203.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3208occurred in iteration=10, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 666.6ms AutomataMinimizationTime, 11 MinimizatonAttempts, 1809 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 62 NumberOfFragments, 93 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1488 FormulaSimplificationTreeSizeReduction, 74.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 398 FormulaSimplificationTreeSizeReductionInter, 155.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 333.3ms SsaConstructionTime, 1183.7ms SatisfiabilityAnalysisTime, 9964.6ms InterpolantComputationTime, 6584 NumberOfCodeBlocks, 6584 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6569 ConstructedInterpolants, 0 QuantifiedInterpolants, 23805 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2896 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 10309/11089 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: 30]: Loop Invariant Derived loop invariant: ((((9 <= a21 && a24 == 1) || (a24 == 1 && !(a15 == 6))) || (a24 == 1 && 11 < a12)) || (a24 == 1 && a21 <= 6)) || (((a15 <= 8 && a21 <= 6) && !(a15 == 6)) && 49 + a12 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((9 <= a21 && a24 == 1) || (a24 == 1 && !(a15 == 6))) || (a24 == 1 && 11 < a12)) || (a24 == 1 && a21 <= 6)) || (((a15 <= 8 && a21 <= 6) && !(a15 == 6)) && 49 + a12 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-21 20:14:13,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3019180d-c5cd-42a4-9197-0479d515906f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...